BSWA Technology - AUROLEX

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BSWATechnology

E s tab l i shed in 1998, BSWA Te c h n o l o g y C o . , L t d . i s a n acoustical company covering the businesses of:

Manufacturing the world class measurement microphones.D e v e l o p i n g a c o u s t i c measurement systems and devices. Designing and building anechoic chambers.A c o u s t i c a l c o n s u l t i n g f o r environmental and noise control projects.

Wi th headqua r te r l oca ted i n Beijing, BSWA currently employed 70 staff with branch off ices in S h a n g h a i , G u a n g z h o u , a n d Chengdu. BSWA’s products are distributed in over 40 countries through our sales partners.

ProductionBSWA's production facility is located 30 km from central Beijing and includes over 1200 m2 of floor space. The facility comprises manufactur ing areas, test laborator ies, environmental chambers, a full anechoic chamber, and a clean room. All microphones are hand built to and individually tested to meet BSWA's high standards in quality and performance.

QualityB S WA i s f u l l y c o m m i t t e d t o Q u a l i t y Management ensuring that every product meets str ic t standards in performance. BSWA continues to invest in new machine tool technology, new methods of calibration, and new process control methods to further microphone and related equipment technology while reducing manufacturing costs.

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COMPANY INTRODUCTION

BSWA is continuously improving its products while developing new ones in response to customer needs. From 1998 till today, BSWA has launched such new products as microphones array, VA-Lab software, impedance tube, outdoor noise monitoring system, and a complete line of microphone products. BSWA strives for excellence in product design resulting in high quality, exceptional performance, and low cost. The latest information about BSWA can be found in:

www.bswa-tech.com

Established by five acoustic engineers partnered with Institute of Acoustics - 1998

Launched MP201 measurement microphones - 2000

Acquired microphone business from IOA. - 2002

Expanded microphone product line, launched M P s e r i e s - 2 0 0 4

Launched VA-Lab measurement software -2007

Acoustic consulting projects for home appliance companies -1999

Built anechoic chamber for Lenovo Computers -2001

First InterNoise Show in Korea -2003

Launched impedance tube measurement system-2005

Launched Outdoor Noise Monitoring System-2008

1998

2008

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Research & Development

As a technology-leading company, BSWA invests heavily in product research and development. BSWA hires skilled individuals, most with M.S. and Ph.D. degrees in Acoustics and related sciences. This results in not only an incredibly knowledgeable team of developers and technicians, but also a team that is dynamic, highly motivated, and able to develop and manufacture high quality products.

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Microphone WOvervie

Polarization Voltage

(V)

MK Series(200V)

MP Series(0V)

Free-field Microphones Prussure-field Microphones

Special Microphones

1" 1/2" 1/4" 1/2" 1/4" 1/2"/1/4" 1/4"

Class 1 Class 1 Class 2 Class 1 Class 2Outdoor

MicrophoneClass 1 Class 1Array

Microphone

MK101 MK201 MK401 MK253

MP201 MP215

MP231 MP216

MP401 MP418

MP251

MP253

MP451

OM231

OM416

MPA416

MK series are 200V polarization voltage microphones; MP series are prepolarized microphones

Class 1 = IEC 61671-2003 Class 1

Sound Intensity Probe

SI502

1/2"

MP series-Prepolarized Free Field Pressure Field

Outdoor Mic

MK series-200V Polarization

Sound Intensity Array Mic Preamplifier

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Preamplifiers

1/2" 1/4"

MV201

MA211MA221

MA408MA401

MK series are 200V polarization voltage microphones; MP series are prepolarized microphones

Class 1 = IEC 61671-2003 Class 1

BSWA

MA201T

MA201

e n g i n e e r s h a v e accumulated 30 years o f exper iences in making measurement microphones. Each m i c r o p h o n e w a s h a n d c r a f t e d t o e x a c t i n g i t s h i g h qualities, reliabilities, a n d e x t r e m e stabilities in all kinds of environments.

Class 1

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1/2'' PREPOLARIZED FREE FIELD MICROPHONE-CLASS 21/2'' PREPOLARIZED FREE FIELD MICROPHONES-CLASS 1

MP201/MP231

MP201 microphone is the best choice for use in IEC61672 Class 1 Sound Level Meters and other noise measurements r e q u i r i n g C l a s s 1

MP231 microphone uses stainless steel as protection grid, which makes the microphone stronger and firmer. The MP231 conforms to IEC61672 Class 1 standard with a sensitivity of 40mv/Pa. The MP231 is perfect for its long-term stability.

Typical Free-field Frequency Response Curve of MP�01

SPECIFICATIONS

accuracy. It is a 1/2" prepolarized free-field measurement microphone whose development spans over 30 years in design, manufacture, calibration, and field testing. The microphone housing and diaphragm are also made from the same nickel alloy to ensure the smallest temperature coefficients.

Production qual i ty control for the MP201 uses only 40% of the frequency response to le rances a l lowed by IEC61672 Class 1 microphones.

Figure below shows the typical free-field frequency response curve of the MP201 (black curve) against quality control limits (red curves).

ModelDiaphragm MaterialHousing Material

Open-Circuit Sensitivity

Capacitance (Typical)DiameterResponsePolarization VoltageFrequency Response Dynamic Range (3%Distortion Limit)Cartridge Thermal Noise Pressure Equalization VentOperating TemperatureOperating HumidityEquivalent Air VolumeTemperature Coefficient (-10°C ~ 50°C) Humidity CoefficientPressure Coefficient (250 Hz)Dimensions

MP201NickelAloy-26 dB±2 dB (50 mV/Pa)16 pF

MP231NickelAloy-28 dB±3 dB (40 mV/Pa)16 pF

FREE FIELD MICROPHONES MP201/MP231

1/2 inchFree Field

0 V 6.3 Hz ~ 20 kHz

> 146 dB

< 16 dB (A)

Rear Vented

-30°C ~ 80°C0 ~ 98% RH

250 mm3 at 250 Hz

- 0.005 dB/°C

- 0.003 dB/%RH

- 0.004 dB/kPa

IEC 61094-4 Type WS 2

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2.5 kHz 5 kHz 10 kHz

1/2'' PREPOLARIZED FREE FIELD MICROPHONE-CLASS 2

MP215

MP215 m ic rophone i s a 1 /2 " prepolarized free-field measurement microphone and the best choice for use in IEC61672 Class 2 Sound Level Meters and other noise measurements requiring Class 2 accuracy.

The design of the MP215 is based on the high performance MP201 and MP231 design and technology. The microphone diaphragm of MP215 is also made from a nickel alloy using BSWA diaphragm coating technology while the housing is made from stainless steel. The temperature, pressure, and humidity coefficients are better than IEC 61672 Class 2 requirements. To help distinguish it from the MP201 and MP231, the microphone protection grid of MP215 was redesigned.

The f igure be low i l l us t ra tes the typical polar pattern of MP215 and its exceptional omni-directional capability. Each microphone is ind iv idua l ly calibrated using an electrostatic actuator and pistonphone and all microphones are environmentally aged for long-term stability.

MP215 is an excellent all around Class 2 microphone with proven design for quality, reliability, stability, and performance.

Directional Response of MP�1� Microphone.

SPECIFICATIONSFREE FIELD MICROPHONE MP215

DiameterDiaphragm MaterialHousing MaterialOpen Circuit Sensitivity Capacitance (Typical) ResponsePolarization VoltageFrequency ResponseDynamic Range (3% Distortion Limit)Cartridge Thermal NoisePressure Equalization VentOperating TemperatureOperating Humidity Equivalent Air VolumeTemperature Coefficient(0°C ~ 40°C)

Humidity Coefficient20% - 90% RH

Pressure Coefficient

Dimensions

1/2 inchNickelStainless Steel-28 dB±3 dB (40 mV/Pa)13 pFFree Field0 V8 Hz ~ 12.5 kHz

> 146 dB

< 18 dB (A)

Rear Vented

-20°C~ 80°C. 0 ~ 98% RH240 mm3 at 250 Hz<±0.2 dB at 250 Hz, at reference temperature 23 °C<±0.2 dB at 250 Hz at temperature 40°C, and reference 50% RH85 kPa ~ 108 kPa: SPL change < ±0.6 dB at 250 Hz at reference pressure 101 kPa. 65 kPa ~ 85 kPa: SPL change < ±1.2 dB at 250 HzIEC 61094-4 Type WS 2

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1/2'' PREPOLARIZED FREE FIELD MICROPHONE-CLASS 2

MP216

MP216 i s a 1 / 2 " prepolarized free-field condenser microphone. Developed specifically as an ext remely low cost, general purpose

Typical Free-field Frequency Response Curve of MP�1�

microphone , i t de l i ve rs C lass 2 measurement accuracy. The MP216 uses a po l ymer d i aph ragm and stainless steel housing making it well suited for use indoors and in controlled environments. These materials and associated manufacturing significantly reduce its cost but also limit its ability to meet Class 2 temperature and pressure coefficients. The overall stability and reliability within a constant environment, however, is maintained and ensured through testing of each microphone.

T h e M P 2 1 6 p r o t e c t i o n g r i d i s irremovable and the calibration of the microphone is performed in the anechoic chamber. The microphone is supplied with its individual sensitivity and typical MP216 frequency response curve, as shown in the figure below. As an option, the actual frequency response of the microphone can be supplied.

FREE FIELD MICROPHONE MP216DiameterDiaphragm MaterialHousing MaterialOpen-Circuit Sensitivity Capacitance (Typical) ResponsePolarization VoltageFrequency Response Dynamic Range (-3% Distortion Limit)Cartridge Thermal NoisePressure Equalization VentOperating TemperatureOperating Humidity:Equivalent Air Volume

Temperature Coefficient (250 Hz)

Humidity Coefficient (250 Hz)

Pressure Coefficient (250 Hz)Dimensions

1/2 inchPolymerStainless Steel-30 dB±3 dB (32 mV/Pa)20 ~ 25 pFFree Field0 V 20 Hz ~ 16 kHz;

> 135 dB

< 20 dB (A) Rear Vented0°C ~ 40°C0 ~ 98% RH240 mm3 at 250 Hz<±0.6 dB at 250 Hz, at reference temperature23 °C<±0.6 dB at 250 Hz at temperature 40°C, and reference 50% RH

0.05 dB/kPa

IEC 61094-4 Type WS 2

SPECIFICATIONS

1/4'' PREPOLARIZED FREE FIELD MICROPHONES

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1/4'' PREPOLARIZED FREE FIELD MICROPHONES

MP401/MP418

Typical Free-field Frequency Response Curve of MP�01

FREE FIELD MICROPHONE MP401DiameterOpen-Circuit Sensitivity Capacitance (Typical)ResponsePolarization VoltageFrequency Response Dynamic Range (3% Distortion Limit)Cartridge Thermal Noise Pressure Equalization VentOperating TemperatureOperating Humidity

Dimensions

1/4 inch-46 dB±3dB (5mV/Pa)6 pFFree Field0 V 10 Hz ~ 70 kHz

> 170dB

< 45 dB (A) Rear Vented-20°C~ 80°C0 ~ 98% RHLength: 10.5 mm,Thread Size: M5.7 mm x 60 UNS

SPECIFICATIONSMP401 is 1/4" free-field prepolarized microphone. Its small size ensures a lower in te r fe rence and

reverberation influence of its presence in the sound field.

The frequency range of MP401 is between 20Hz and 70 kHz. MP401 con fo rms to IEC 61672 C lass 1 standard. Because of its relatively low sensitivity, MP401 can make the test at up to 170 dB. These exceptional characters make MP401 the best choice for high frequency and high intensity measurement.

MP418 is a 1/4" free-field prepolarized microphone. It was developed based on BSWA's Class 1 microphone

technologies. MP418’s frequency response meets IEC61672 Class 2 requirements.

Each MP418 microphone is individually calibrated and aged at high temperature for long-term stability and reliability.

T h e M P 4 1 8 i s g o o d c h o i c e f o r dosemeters.

FREE FIELD MICROPHONE MP418DiameterOpen-Circuit Sensitivity Capacitance (Typical)ResponsePolarization VoltageFrequency Response Dynamic Range(3% Distortion Limit)Cartridge Thermal Noise Pressure Equalization VentOperating TemperatureOperating Humidity

Dimensions

7 mm-40 dB±3 dB (10 mV/Pa)6 pFFree Field0 V 20 Hz ~ 16 kHz

> 137 dB

< 36 dB (A) Front Vented0°C ~ 40°C0 ~ 98% RHLength: 7.5 mm,Thread Size: M6 x 0.5

SPECIFICATIONS

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PREPOLARIZED PRESSURE-FIELD MICROPHONES

MP251/MP253/MP451

There are three types of sound field measurement microphones for use in different testing environments: free-field microphone, pressure-field microphone, and random-incidence microphone.When mak ing a measu remen t a t f r e q u e n c i e s b e l o w 5 0 0 0 H z , t h e differences of the measurements using the above three types of microphones are within 0.3 dB. The measurement difference could be higher than 10 dB at the high frequencies above 16 kHz. Therefore, choosing the r ight microphone is a must for making accurate measurements.

Random- inc idence Microphone: Only USA standard has requests for random-incidence microphones. So to make the measurement conform to the USA ANSI standard, a random-i n c i d e n c e m i c r o p h o n e m a y b e required.Free-field Microphone: A microphone can change the sound field in which

it is placed. A free-field microphone is designed to compensate for the influence of its presence in the sound field. So it can measure the sound pressure as i t existed before the microphone was introduced into the sound field and can be used in such environments as outdoors, anechoic room, or reverberation room. Pressure-field Microphone: a pressure-field microphone can measure the sound p ressure ex is t i ng on the diaphragm of the microphone. It can be used in a coupler environment such as an ear simulator or to test the sound pressure on a surface.

MP251 and MP253 a re 1 /2 ’ ’ pressure-f ield microphones and are designed to make the measurement in an ear simulator, a coupler or the sound pressure on a surface.

MP451 i s 1 / 4 ’ ’ p r e s s u r e - f i e l d microphone.

SPECIFICATIONS

ModelDiameterOpen-Circuit SensitivityCapacitance (Typical)ResponsePolarization VoltageFrequency ResponseDynamic Range(3% Distortion Limit)Cartridge Thermal NoisePressure Equalization VentOperating TemperatureOperating HumidityEquivalent Air VolumeTemperature Coefficient (-10°C ~ 50°C)Humidity CoefficientPressure Coefficient (250 Hz)

Dimensions

MP2511/2 inch

-40 dB±3 dB (10 mV/Pa)16 pF

Pressure Field0 V

8 Hz ~ 20 kHz

> 146 dB

< 20 dB (A) Rear Vented-30°C ~ 80°C0 ~ 98% RH

250 mm3 at 250 Hz

- 0.008 dB/°C

-0.006 dB/%RH-0.005 dB/kPaLength: 13 mm

IEC 61094-4 Type WS 2P

MP2531/2 inch

-26 dB±3 dB (50 mV/Pa)16 pF

Pressure Field0 V

8 Hz ~ 10 kHz

> 146 dB

< 20 dB (A) Rear Vented-30°C ~ 80°C0 ~ 98% RH

250 mm3 at 250 Hz

- 0.008 dB/°C

-0.006 dB/%RH-0.005 dB/kPa

Length: 16.7 mmIEC 61094-4 Type WS 2P

MP4511/4 inch

-48 ±3 dB (4 mV/Pa)6 pF

Pressure Field0 V

20 Hz ~ 70 kHz

> 170 dB

< 40 dBARear Vented-20°C ~ 80°C0 ~ 98% RH

- 0.008 dB/°C

-0.006 dB/%RH-0.005 dB/kPa

Length: 10.5 mmIEC61094-4 WS3F

PRESSURE-FIELD MICROPHONES MP251/MP253/MP451

MP251

MP253

MP451

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200V POLARIZED MICROPHONES

MK101/MK201/MK401/MK253

200V POLARIZED MICROPHONES MK101/MK201/MK401/MK253

Model

MK101MK201MK401MK253

Diameter

1"1/2"1/4"1/2"

Response

Free FieldFree FieldFree Field

Pressure Field

Sensitivity

50 mV/Pa40 mV/Pa5 mV/Pa

40 mV/Pa

Dynamic Range

10 ~ 146 dB(A)18 ~ 146 dB(A)30 ~ 170 dB(A)20 ~ 147 dB(A)

Frequency Response

3 Hz ~ 16 kHz4 Hz ~ 20 kHz5 Hz ~ 70 kHz4 Hz ~ 10 kHz

Polarization Voltage200V200V200V200V

Dimensions

IEC 1094-4 Type WS 1IEC 1094-4 Type WS 2IEC 1094-4 Type WS 3IEC 1094-4 Type WS 2

BSWA MK series microphones are 200V polarized microphones with a better stability and high-temperature resistant capacity. MK series microphones need BSWA MV201 as the preamplifier. A 7-p in Lemo cable is a lso needed for output.

MK101 is a 1" 200V Polarized F r e e F i e l d m i c r o p h o n e o f IEC61672 Class 1. MK101 has a high sensitivity and stability and can be used for measurement of low frequency.

MK201 is a 1/2" 200V Polarized Free Field microphone of IEC61672 Class 1. MK201 can be used for high accuracy measurement indoors.

MK253 is a 1/2" 200V Polarized P ressu re F ie ld m ic rophone . MP253 is appropriate for making measurements in couplers. It can also be used in the diffuse field.

MK401 is a 1/4" 200V Polarized Free Field microphone. Because of its low sensitivity, MK401 can take measurement at up to 174 dB. MK401 can be used for high in tens i ty and h igh f requency measurements.

SPECIFICATIONS

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PREAMPLIFIERS

MA211/MA221/MA201T/MA408/MA401/MV201

SPECIFICATIONS

ModelsDiameterFrequency Response (Ref: 250 Hz, ±0.2 dB)Attenuation(10 Hz ~ 100 kHz)Input Impedance Output Impedance

Electrical Noise

Max Output VoltagePower RequirementOperating TemperatureOperating HumidityLengthOutput Connector

Thread for Microphone

PREAMPLIFIERS MA211/MA221/MA201T/MA408/MA401/MV201

1/2 inch

20 Hz ~ 200 kHz

< 0.5 dB

> 5 G Ω< 110 Ω

A-weighting < 2.0 μV20 Hz ~ 20 kHz < 6.0 μV

4.5 VrmsICP (2 ~ 20 mA)

-20°C ~ 80°C0 ~ 98% RH

71 mmBNC

36 mmSMB

110 mmTNC

Φ11.7 mm x 60 UNS

MA211 MA221 MA201T1/4 inch

20 Hz ~ 200 kHz

< 0.5 dB

> 1.5 G Ω< 110 Ω


4.5 VrmsICP (2 ~ 20 mA)

-20°C ~ 80°C0 ~ 98% RH

58 mmSMB

M6 x 0.5M5.7 mm x 60

UNS

MV2011/2 inch

3 Hz ~ 200 kHz

< 0.5 dB

> 20 G Ω< 55 Ω


10 Vrms28 V, 120 V

-20°C ~ 80°C0 ~ 98% RH

91 mm7-pin LEMO

Φ11.7 mm x 60 UNS

MA408 MA401

MA211 is a 1/2’’ ICP preamplifier specially designed for BSWA 1/2" prepolar ized microphones. I t is h igh per formance preamplifier with low inherent noise and high input impedance. Its flat frequency response ensures high quality acoustic measurements that comply wi th IEC 61672 Class 1 requirements.

C o u p l i n g t h e M A 2 11 w i t h B S W A MP231microphone, an incredible dynamic range of 15 dBA to 130 dBA can be achieved. If coupled with a lower sensitivity microphone, an upper range even greater than 130 dBA can be achieved.

MA221 is similar to MA211 but with only 36mm length. MA221 has SMB connector and can be used in the artificial ear.

MA201T is a 1/2’’ ICP preamplifier with TNC connector. It can be used in microphone array and sound level meter.

MA408/MA401 is a 1/4’’ preamplifier using SMB connector for the output.

MA408 has the thread of M6x0.5 and it is suitable for BSWA MP418 microphone only.

MA401 is designed for use with standard 1/4’’ prepolarized microphone such as MP401.

MV201 is a 1/2’’ traditional preamplifier with an integrated 3 meter cable terminating in 7-pin LEMO connector. MV201 can deliver 200V for externally-polarized microphones. It is suitable for accurate measurement of high sound intensity. It can be powered by BSWA MC701 microphone power supply.

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1/2'' ICP & TEDS MICROPHONES

MPA231/215/216/MPA261/265/266(TEDS)

SPECIFICATIONS

ModelsMicrophone CapsuleDiameterPreamplifier Optimized Frequency ResponseSensitivity Max. SPL for 3% THDEquivalent Noise LevelOutput Impedance Max. Output Voltage ConnectorICP Power

ICP MICROPHONES MPA231/215/216 and TEDS ICP MICROPHONES MPA261/265/266MPA215/MPA265

MP2151/2 inch

MA211/MA211 with TEDS20 Hz ~ 12.5 kHz

40 mV/Pa132 dB

20 dB (A) 110 ohms4.5 Vrms

BNCCurrent 4.0 mA

MPA231/MPA261MP231

20 Hz ~ 20 kHz40 mV/Pa

130 dB18 dB (A)

MPA216/MPA266MP216


132 dB24 dB (A)

BSWA ICP microphones, MPA231/215/216, utilize the outstanding performance of BSWA's MA211 ICP preamplifier coupled with the high quality line of 1/2" prepolarized microphones. Using ICP microphones have many advantages over traditional 200V polarized microphones.

ICP microphones are lower cost.They are able to use long cable lengths, up to 500 meters.They work with any ICP input channel, which can be used for both acoustic and vibration measurements.

MPA231 offers BSWA's top of the line choice and is suitable for all acoustical measurements requiring Class 1 accuracy. The MPA231 is extremely stable environmentally. It is widely used in multi-channel sound measurements including acoustic arrays due to its excellent phase-matching and sensitivity characteristics.

MPA216 is BSWA's extremely low cost solution while still delivering accurate acoustic measurements. The MPA216 is recommended for indoor uses, where temperature and humid i ty are re la t ive ly s tab le over the measurement time period.

TEDS stands for the Transducer Electronic Data Sheet defined in IEEE 1451.4 standard.

MPA261/265/266 i s ICP TEDS microphone with a combination of BSWA 1/2’’ microphone and TEDS preamplifier MA211.

TEDS microphone includes such information as the microphone model, serial number, sensitivity, reference frequency, calibration date, and etc. The TEDS information will be read by an ever-increasing range of instruments. The TEDS microphone helps to facilitate plug and play and reduce the setup time of the system.The MPA series of TEDS microphones are sealed to the preamplifier with a calibration sticker.

ICP® is a registered trademark of PCB Group, Inc., Depew, New York.

MPA215 provides excellent value, with good environmental stabil ity and phase-matching ability. It is the best choice where a large number of microphones require Class 2 accuracy.

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1/4'' ICP & TEDS MICROPHONES

MPA418/MPA401

BSWA 1/4 inch ICP microphone MPA418/MPA401 couples BSWA 1/4 inch prepolarized microphone MP4** series and BSWA ICP preamplifier MA408.

SPECIFICATIONS

ModelsMicrophone CapsulePreamplifierFrequency ResponseSensitivityMax. SPL for 3% THDEquivalent Noise LevelOutput ImpedanceOperating TemperatureOperating HumidityConnectorICP Power

ICP MICROPHONES MPA418/MPA401MPA418MP418

MA408(TEDS optional) MA401(TEDS optional)

MPA401MP401


130 dB<40 dB (A)

20 Hz ~70 kHz5 mV/Pa160 dB

<45 dB (A) 110 ohms

0°C ~ 40°C0 ~ 98% RH

-20°C ~ 80°C0 ~ 98% RH

SMBCurrent 4.0 mA

MPA418 is 1/4 inch free-field prepolarized measurement microphone. It is developed based on BSWA’s Class 1 microphone technology and conforms to IEC61672 Class 2 standard.

MPA401 is 1/4 inch free-field prepolarized measurement microphone and conforms to IEC61672 Class 1 standard.The frequency range of MPA401 can be from 20Hz to up to 70kHz and the Max. SPL can be 160 dB. These exceptional characters make MPA401 the best choice when testing high grade speakers or when making high intensity acoustics measurement.

Typical Free-field Frequency Response Curve of MPA�1�

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MPA416 is a 1/4” prepolarized free-field measurement microphone. It is an ideal choice for array applications where a large number of microphones are required.

MPA416 Features:

MPA416 Applications:

MPA416 consists of an microphone c a r t r i d g e a n d I C P p r e a m p l i f i e r (irremovable). Before factory release, all the microphones are going through solid environmental testing, which includes high temperature ageing and high humidity ageing. It is stable microphone for accuracy acoustical measurements.

MPA466 is the TEDS version of 1/4” prepolarized free-field measurement microphone which has the information of microphone model, serial number, sensitivity, reference frequency, calibration date, and other information to facilitate plug and play and reduce the setup time of the testing system.

1/4'' ICP ARRAY MICROPHONES

MPA416/MPA466

Typical Frequency Response of MPA�1�/MPA��

ICP ARRAY MICROPHONES MPA416/466 （TEDS）ResponseSensitivity

Equivalent Noise LevelUpper Dynamic LimitFrequency Range

Power supplierT.H.DTemperature Coefficient：(at 1000 Hz, at reference temperature 23°C)Humidity Coefficient

Operat ing Temperature RangePolarization Voltage:

Free Field-26 dB±2 dB (ref 1V/Pa) ; or 50 mV/Pa.29 dB(A)127 dB20 Hz ~ 20 kHz (complied with IEC 61672 Class 1 requirements at reference conditions)ICP< 3% at 128 dB SPL15 ~ 35°C: <±0.3 dB0 ~ 40°C : <±1.5 dB-10 ~ 50 °C:<±3.0 dB20%~90% RH ; Sound Pressure Level Change < ±0.8 dB at 1000Hz at temperature 30°C, and reference 50% RH

-10°C ~ 50°C

0 V

SPECIFICATIONS

High Sensitivity: 50 mV/Pa. This is a high sensitivity for 1/4” microphones. The advantage of such high sensitivity is to provide high signal output to data acquisition board. Low Noise Floor: 29 dBA. MPA416 is tested to have noise floor of 29 dBA. It can be used to measure noise from computers, home appliances and other low noise machines. Flat Frequency Response: 20 Hz ~ 20 kHz. The frequency response complies with IEC 61672 Class 1 tolerances.Phase Match: Special attentions are paid to phase-match; MPA416 has the guaranteed phase- match tolerances.

Microphone arrayGeneral acoustical measurements at controlled environments (in rooms or laboratories)

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TEDS READER & WRITER

TR100

TEDS stands for the Transducer Electronic Data Sheet as defined in IEEE 1451.4 standard.BSWA TEDS Reader and Writer TR100 is designed especially for TEDS Microphones that meet IEEE 1451.4 standard. TR100 can read, write and rewrite the information in the TEDS microphones.

TR100 Features:Compatible with IEEE1451.4 standard and support Template 27 (Microphones with built-in preamplifier)USB connectorCan identify TEDS chips automatically.

TR100 can read and write the following electronic data:

Manufacturer IDProduct Type #, Serial #, and Version #Sensitivity (mV/Pa)Reference Frequency (Hz)Polarization Type (Prepolarization or 28V/200V)Microphone Type (Free-field, Pressure-field, Diffuse-field, and others)Microphone Diameter (1″, 1/2″, 1/4″, 1/8″)Equivalent Air VolumePolarity Calibration Information (Calibration date and period of validity)

BSWA TEDS microphones are with the combination of BSWA ICP microphones and TEDS preamplifiers. TEDS microphones help to facilitate plug and play and shorten system’s setup period.

BSWA TEDS microphones: MPA261 MPA265 MPA266 MPA461 MPA466 MPA468

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SI502 Sound Intensity Probe is built using ICP type preamplifiers. It complies with IEC 1043 Class 2 Standard. Based on t he t echn ique o f s imu l t aneous determination of sound pressure and particle velocity by two closely spaced microphones, SI502 can be direct ly connected to ICP inputs to perform sound intensity measurements.

Features ICP ® powered Two BNC connectors for easy connection Accurate phase matched microphones Face to face configuration 1/3-octave centre frequency ranges: 63 Hz to 5 kHz Well-defined acoustical microphone separation.

SI502 is constructed on a face-to-face design. It comprises a robust frame which holds two ICP preamplifiers and matched microphones in a face-to-face configuration. The distance between microphones is defined by solid, plastic spacers. Sound is constrained to act on each microphone through a narrow slit between the spacer and the microphone grid. This gives well-defined acoustic separation of the microphones and minimizes shadow and reflection effects.

Phase matching of 1/2″Microphone Pair selected from Type MP201 is better than 2 degrees in full test frequency range from 45 Hz to 6000 Hz. The normalized microphone frequency responses differ by less than 0.5 dB. SI502 is supplied with 8.5 mm, 12 mm and 50 mm spacers.

Each probe is individually calibrated in the anechoic chamber; the calibration data include phase matching, microphone sensitivities and actuator responses.

SOUND INTENSITY PROBE

SI502

SOUND INTENSITY PROBE SI502Standard

Frequency Range(1/3 Octave)

WeightOutput Connectors

Cable to ICP inputs

Case Dimensions

IEC 1043 Class 28.5 mm Spacer: 250 Hz ~ 5000 Hz12 mm Spacer: 160 Hz ~ 5000 Hz50 mm Spacer: 63 Hz ~ 1250 Hz0.4 kgThree-pin Lemo in the Probe 5 m cable with Lemo to 2 BNC connectors400 x 200 x 70 mm

SPECIFICATIONS

MICROPHONE PAIRS

Microphones

DiameterResponseCombined Sensitivity

Microphone Phase Response Difference

Amplitude Response Difference (Ref 250 Hz)Equivalent Air VolumeTemperature Coefficient (-10°C~ 50°C) Humidity CoefficientPressure Coefficient (250 Hz)DimensionsPreamplifier

Selected Type 1 MP231 for intensity microphone pair1/2 inchFree Field40 mV/Pa<0.3º, 45 Hz ~ 500 Hz<1º, 500 Hz ~ 2500 Hz<2º, 2500 Hz ~ 6000 Hz

< 0.5 dB ; 45 Hz ~ 6000 Hz

250 mm3 at 250 Hz

-0.005 dB/°C

-0.003 dB/%RH

-0.004 dB/kPa

IEC61094-4 Type WS 2BSWA Type MA211 preamplifier

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OUTDOOR MICROPHONES

OM231/ OM416

Outdoor microphones are for outdoor uses such as the outdoor acoustic measurement or community and traffic noises monitoring. BSWA outdoor microphones are fitted with a windscreen, a rain protection and a bird spike to protect them from wind, rain, snow and other atrocious weather.

BSWA outdoor microphones can be calibrated by a pistonphone by removing the windscreen and the rain protection.

The directional angle is 0º for airport noise monitoring and 90 º for community and traffic noises monitoring.

OM231 i s 1 /2 i nch p repo la r i zed condenser outdoor microphone. It is suitable for use in rainy days or in an environment at very high or very low temperature. OM231 uses IEC 61672 CLASS 1 measurement microphone which is outstanding for its stability. It is the best choice for permanent outdoor use such as the airport noise monitoring.

OM416 is a class 2 low-cost outdoor microphone. It used 1/4’’ ICP microphone, which makes it suitable for 0º and 90 º measurements. The OM416 is designed with disposable microphone concept. The microphone is easily removed and replaced after about six months of outdoor uses. OM 416 is supplied with 5 disposable microphones.

SPECIFICATIONS

ModelsSensitivityMicrophone DiameterFrequency ResponseDynamic Range (3% Distortion Limit)Polarization VoltagePower SupplyReference directionOutput Connector

OUTDOOR MICROPHONES OM231/OM416OM231

40 mV/Pa1/2’’

20 Hz ~ 20 kHz

18 ~130 dB

0 V4 mA

0ºBNC

OM41650 mV/Pa

1/4’’20 Hz ~20 kHz

29 ~127 dB 0 V

4 mA0º or 90º

SMB

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STUDIO MICROPHONES

SM4000

SM4000 series phantom powered studio microphones are for precision recording and measurement of sound with no color added. They can be used to record essentially any instrument for a truly accurate representation of the original sound. Each SM4000 microphone is supplied with its individual calibration data for frequency response and sensitivity. Its modular design allows the preamplifier to be used with any of the high quality BSWA microphone capsules.

SM4201 microphone is top of the line. It is suitable for the most critical recording applications requiring extreme performance and environmental stability. Its nickel alloy construction ensures durability and outstanding performance. The electronic circuitry coupled with a transformerless output stage provides a flat frequency response across the entire audio bandwidth while at the same time achieving an extremely low noise floor. With a dynamic range of 125 dB handling up to 146 dB SPL, it is a handcrafted work of art.

SM4215 microphone is a top performer that uses the same preampli f ier as the SM4201. It has the same flat frequency response out to 16 kHz stemming from its

SPECIFICATIONS

ModelsMicrophone CapsuleLinear Frequency RangeSensitivityMax. SPL for 3% THDEquivalent Noise LevelOutput ImpedanceMax. Output VoltageConnectorPhantom PowerWeightPolar Pattern

STUDIO MICROPHONE SM4000 SERIESSM4201MP201


146 dB18 dB (A)

SM4215MP215

20 Hz ~ 12.5 kHz40 mV/Pa

140 dB20 dB (A)

SM4216MP216


130 dB24 dB (A)

200 Ω4.5 Vrms (load > 2000 Ω); 1.0 Vrms (load =1000 Ω)

XLR25 V ~ 48 V（ current 3 mA ）

160 gOmni Directional

MODULAR PARTSSMA4000PSM4000 K

Phantom Powered Preamplifier for SM4000 Series MicrophonesMicrophone Kit includes SMA 4000P, MP201, MP215, and MP216

nickel alloy diaphragm. It is a great choice for accurate acoustic recording requiring a large dynamic range.

SM4216 microphone offers an economical choice with incredible performance. Its polymer diaphragm and copper housing yields a flat frequency response out to 16 kHz with excellent dynamic range and low noise floor. It is a proven performer for the price.

SM4418 microphone is 1/4" recording microphone. It has a flat frequency response out to 16 kHz with excellent dynamic range and low noise floor. Its impulse response and polymer diaphragm sett l ing t ime is exceptional. Its sound is uncolored and it has no handling noise.

SM4418MP418


137 dB26 dB(A)

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MICROPHONE ARRAY

SPT980/SPS980/SPS490

SPECIFICATIONS

ModelType of ArrayNo. of MicrophonesDiameterMicrophone ModelDynamic RangeFrequency RangePhase MatchCabling

MICROPHONE ARRAY SPT980/SPS980/SPS490SPS980

Spiral36

1.0 mMPA416

30 ~ 128 dBA20 Hz ~ 20 kHz

±5 º8-pin LEMO to 8 SMBs

SPT980Spiral

361.0 m

MPA231T20 ~ 135 dBA

20 Hz ~ 20 kHz±2 º

8-pin LEMO to 8 SMBs

SPS490Spiral

160.5 m

MPA41630 ~ 128 dBA

20 Hz ~ 20 kHz±5 º

8-pin LEMO to 8 SMBs

BSWA designs and manufactures microphone arrays for acoustical measurements. Our experience spans from simple linear array to complicated random array. The number of microphones in the arrays ranges from 16 to 256 according to the customers’ requirements.

Microphones are the most important elements in the array; BSWA uses MPA416 (or MPA466 with TEDS) for 1/4” microphone array. The phases of the microphones are matched according to the customer’s specifications. For critical applications where high accuracy and low noise are required, BSWA wi l l recommend MPA231 (or MPA261 with TEDS) as microphone elements

To make the array structurally stable, BSWA uses stainless steel (or aluminum) and CNC cutting to fabricate the mechanical parts.

SPS490 Spiral Array

SPS980 Spiral ArrayCustomized Cross Array

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MICROPHONE SPHERICAL SURFACE FIXTURE

MF720/MF710

411

1814

7

3

115 19 17

10

68

20

139

2

16

125

X

Y

Z

X

54

1

8

15

19

1816

1211

20

14 13

97

23

6

10

17

Microphone Positions for MF720

Microphone Mounting for MF710 and MF720

SPECIFICATIONS

ModelNo. of Microphone Positions

Standards

Radius (microphonepositions) (m)Microphone Size to be Fixed on (inch)Carrying Case (mm)Weights(kg)

MPA231 1/2”ICP MicrophonesCBB 020 20 m BNC cables

MICROPHONE SPHERICAL SURFACE FIXTURE MF710/MF720MF720

20

ISO3745-2003

1.0

1/2

1500 x 350 x 20011

20

20

MF710

10

ISO7779, GB6882-88; ISO3475-1982

1.0

1/2

1500 x 350 x 20010

10

10

OPTIONAL ITEMS

In the measurement of sound power level according to ISO 3745-2003, 20 measurement pos i t i ons a re requ i red on a spher i ca l measurement surface enveloping a noise source in anechoic and hemi-anechoic room. However, it is difficult to mount 20 microphones on tripods in a spherical surface.

BSWA deve loped MF720 (and MF710) microphone f ixture specif ical ly for such measurements. MF720 is designed according to ISO 3745-2003 to mount 20 microphones over the spherical surface; MF710 is a 10 posit ions version according to ISO3745; ISO7779 and GB6882.

MF720/ MF710 main features

20 / 10 microphone positionsThe posi t ion and or ientat ion of each microphone can be adjusted to f i t the amendment of the ISO standardsPortable with light weight and the parts can be disassembled for easy transportation

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MICROPHONE CONDITIONING UNITS

MC102/MC141/MC104/MC701

SPECIFICATIONS

ModelNumber of ChannelsConstant CurrentBatteryGainInput ConnectorOutput ConnectorBattery LifeDimensions

MICROPHONE CONDITIONING UNITS MC102/141/104MC141

14.0 mA

1x 9 V or 220 V/110 V AC×1 and ×10

BNCBNC

> 4 hrs72 x 45 x 113 mm

MC1022

4.0 mA1x 9 V or 220 V/110 V AC

-BNCBNC

> 4 hrs113 x 70 x 45 mm

MC1044

4.0 mA220 V/110 V AC

×0.1, ×1, and ×10BNCBNC

-310 x 250 x 65 mm

MICROPHONE CONDITIONING MC701Number of Channels Polarization VoltagePower SupplyFrequency RangeGainInput ConnectorOutput ConnectorDimensions

1220 V, 28 V, 0 V220 V/110 V AC5 Hz ~200 kHz-20 dB, 0 dB, 20 dB7-Pin LEMOBNC200x100x150 mm

SPECIFICATIONS

MC102 is a 2-channel ICP power supply that provides a constant 4.0 mA

MC141is a single-channel I C P p o w e r s u p p l y t h a t p r o v i d e s a

MC104 i s a 4-channe l microphone conditioning. It can supply 4.0 mA current to ICP microphones and other ICP sensors. Each channel has a gain of ×0.1, ×1, and ×10. MC104 can be powered by 110/220 V AC.

M C 7 0 1 m i c r o p h o n e cond i t ion ing c a n s u p p l y m i c r o p h o n e w i t h 2 0 0 V p o l a r i z a t i o n vol tage. The input of MC701 is 7-Pin LEMO

current to ICP microphones and other ICP sensors. The output signals from MC102 can be connected directly to other equipment or data acquisition systems with BNC connectors.To reduce line noise and increase portability, the MC102 is battery powered and includes a built-in low battery indicator.

constant 4.0 mA current to ICP microphones and other ICP sensors. It has a gain of ×1/×10 and has BNC input and output.

while the output is BNC connector.

The MC701 has selection of polarization voltage of 0, 28 and 200 V. It can be used with MV201 preamplifier and BSWA MP and MK series microphones

The gain of MC701 can be adjusted to -20 dB, 0 dB, and +20 dB and the frequency range is between 5 Hz and 200 kHz.MC701 can be powered by 110/220V AC and is suitable for laboratory use.

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ELECTROSTATIC ACTUATOR/CALIBRATOR

EA002/AS002/CA106

EA002 is an electrostatic actuator designed and manufactured by BSWA for test ing frequency response of microphones. An electrostatic actuator comprises an electric metal plate which can be placed near the microphone diaphragm. A time-various voltage is applied in between the metal plate and the diaphragm and thus an electrostatic force simulating sound pressure can be distributed on the diaphragm surface.

EA002 is especially designed for testing the frequency response of 1/2’’ microphones. It can be placed directly on the diaphragm of a microphone.

EA002 conforms to IEC 61094-6 standard and can be calibrated periodically with a sound level meter in accordance with IEC 61672-3 standard.

CA106 Sound Level Calibrator is a pocket-sized, battery operated sound source for quick and direct calibration of sound level meters and other sound measuring systems.

CA106 satisfies IEC60942 Class 2 standard and f i ts a l l 1 /4" , 1 /2" and 1" d iameter

A S 0 0 2 i s the electrostatic actuator power supply. It have bu i l t - i n s igna l

ELECTROSTATIC ACTURTOR EA002StandardsMicrophone DiameterDimensionWeight

Max. Input SignalSignal Magnified byMax. Output SignalDC Bias VoltageFrequency RangeOutput ImpedancePower SupplyDimensionWeight

IEC 61094-61/2’’Φ50 x 30 mm150 g

1 Vrms30 dB25 Vrms800 V1 Hz ~ 200 kHz1500 Ω220 V 50 Hz285 x200 x105 mm2.4 kg

SPECIFICATIONS

ELECTROSTATIC ACTURTOR POWER AS002

CALIBRATOR CA106Standards Calibration LevelCalibration FrequencyHarmonic Distortion

Environmental Influences(reference to standard conditions)

Stabilization TimeCoupler VolumeBattery

Battery Life

DimensionsWeight

IEC 60942 (2003) Class 294 dB±0.4 dB 1 kHz±1.7%< 2.5%SPL < ±0.4 dB; Freq < ±1.7% Temperature: 0 ~ 40 °CHumidity: 20 ~ 90 %Pressure: 65 ~ 108 kPa30 s> 150 cm3

1 x 9 V (PP3)Alkaline manganese is recommended with a battery life better than 24 hoursΦ41 x 102 mm287 g (battery included)

SPECIFICATIONS

microphones.

CA106 provides a continuous sound pressure level of

94.0 dB at 1 kHz allowing the same calibration value to be used for all weightings. After one minute running, the CA106 automatically turns off conserving battery power.

amplifier of 30 dB. It can take the signal directly from a data acquisition card. AS002 can provide an 800V DC bias voltage to drive the electrostatic actuator.

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IMPEDANCE TUBES

SW230/SW260/SW433/SW463/SW422/SW477

SPECIFICATIONS

Model

Value to be Measured

Standard

Frequency Range (Hz)

Inner Diameter of Testing Tube

Loud speaker

1/4’’ MicrophoneData Acquisition CardPower AmplifierSoftware

IMPEDANCE TUBES SW230/SW260/SW433/SW463/SW422/SW477

Sound Absorption Coefficient (α)

GB/T-18696, 2-2002, ISO10534-2, 1998

Sound Absorption Coefficient (α) and Transmission Loss(TL)

Sound Absorption Standard: GB/T-18696, 2-2002, ISO10534-2, 1998;Transmission Loss(TL) Standard in Discussion

125 ~ 3150 125 ~ 6300 125 ~ 3150 125 ~ 6300 50 ~ 1800 1600 ~ 630060 mm for low

frequency; 30 mm for high

frequency

SW230

60 mm

SW260 SW433 SW466 SW422 SW477

60 mm for low frequency;

30 mm for high frequency

60 mm 100 mm 30 mm

4 “ in diameter, 20 Watts, 8 OhmOPTIONAL ITEMS PROVIDED BY BSWA

VA-Lab2 Basic + VA-Lab2 IMP-A VA-Lab4 Basic + VA-Lab4 IMP-AT

MPA416 MC3022+PA50 or MC3522 MC3242

PA50

SW ser ies Impedance Tubes can accurately measure sound absorption coefficients and impedance according to standards described in ISO10534-2 (1998). They are based on the Transfer Function Method, which is much faster than the commonly used Standing Wave Ratio Method. The Transfer Function Method separates the incident and reflected energy from the measured transfer function, and then estimates the acoustic properties of the tested sample located at the end of the tube.

B S WA o f f e r s t h e c o m p l e t e s e t o f Impedance Tube system, which includes: the tubes, microphones; DAQ hardware and measurement software.

Impedance Tube System for Sound Absorption Measurement Impedance Tube System for Transmission Loss Measurement

BSWA 1/4’’ microphones MPA416, which have excellent phase matches, is ideal for impedance applications. The microphones are directly connected to optional 2-channel MC3022 or 4-channel MC3242 data acquisition hardware. PA50 power amplifier is used to drive the loud speaker in the impedance tube. The BSWA VA-Lab software provides all measurement functions for sound absorption and transmission loss testing.

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SMALL REVERBERATION CHAMBER

R-Cabin

R-Cabin is equipped with a complete set of measurement system. The system emits pink noise to drive the two sound sources in the cabin and receives the signals from the four microphones. The reverberation time from the four channels is calculated automatically. The whole calculation is controlled by the computer for easy the operation.

Together with the R-Cabin, BSWA also provides standard testing samples with the certified results. The customers can use the standard samples for reference measurements.

R-Cabin

Parameter to be tested

Testing Channel #Noise Generator Channel #Frequency RangeMax. Sample Size(m)Cabin Size(m)Door Size(m)Weight(Kg)

Sound Absorption Coefficients, Reverberation Time42400 Hz ~ 10000 Hz2.3 x 1.72.35 x 1.83 x 1.5(H)0.8 x 1.3800

SPECIFICATIONS

Measurement System

are four microphones to make reverberation time measurements.

The system consists of:R-Cabin 4-Channel Data Acquisition and sound generator instrument MC3242 or MC36424 sets of microphones MPA 231 2 sets of OS002 sound sourceAudio Amplifier SWA-100VA-Lab softwareStandard samp les fo r check ing the measurement

R-Cabin is a small reverberation chamber which can be used to measure the sound absorption of materials for automotive industries.

R-Cabin features:Appropriate for measurement of sound absorption characteristics of small and irregular samples, such as car seat, roof panel, carpet and etc.The size of the tested sample can be up to 3 square metersFrequency range: 400~10000Hz

Applications:Designing and optimization of the inner-car decoration acoustic system.Testing of the sound absorption coefficients of the inner-car items.Quality Control of the tested items.R&D of new materials and new items.

R-Cabin small reverberation chamber uses steel panes in its structure. The sound absorption quantity of the empty cabin is small to ensure the accuracy of the testing of the Sound Absorption Coefficients of the samples. R-Cabin has exceptional sound insulation characters so that the outer noises have no effects on the testing.

The bottom of R-Cabin is designed to be vibration -resistant. There are four wheels fixed to the cabin for easy movement. There are two omni-directional loudspeakers on the upper and base corners in the cabin as the sound sources. There

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2-CHANNEL AUDIO ANALYZER

BSWA VA-Audio2

VA-Audio2 represents the cost effective 2-channels solution for all your needs In Audio Measurement and Analysis.

A complete set of product oriented modules for measurements and analysis of audio components

Microphones, Loudspeakers, Receivers, Earphones, Headphones and other analog audio components.

VA-Audio2 supports the following hardware from BSWA:

Features

Stepped sweep, continuous sweep, multi-tone, and user-defined stimulus Standard measurements for SPL, THD, and high order THDTwo channe l compar ison method for frequency response, sensitivity and THDAutomatic limit calculationGeneral two channel analyzer functionsSupports hardware from National Instruments and soundcard

Applications

Technical Specifications

MC3022: 2 channel ICP inputs, 2channel outputs, USB powered. Recommended for field uses

MC3522: 2 channel ICP inputs, 2channel outputs, USB powered, built-in power amplifier to drive loudspeakers (needs 220V AC power for amplifier) Recommended for impedance tube; and audio analysis

National Instruments NI 4461: Recommended for precision calibration

Manual Signal Generator

Spectrum Analyzer

Real-Time Analyzer

VA-Audio2 provides complete solutions, no optional software is required.

SinePink and White Noise with user-defined frequency rangeWav file with RMS and Peak level calibrationEqualization using calibration measurements or any user-defined curve

FFT Se lec tab le averag ing t ime (L inear & Exponential)A, B, C weightingsPure tone frequency and amplitude extractionSave to memory of current spectrum

1/1, 1/3, 1/6, 1/12, 1/24 octave analysisAverage, Maximum, Minimum level with overload and real time indicatorsA, B, C weighting filtersLinear and Exponential averaging time

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2-CHANNEL AUDIO ANALYZER

BSWA VA-Audio2

CalibrationTHD and high order distortion (upto 30 orders) for Rub & Buzz analysisiTHD + Noise

Automatically recall data or resultsComparison of results in single graph.

Pass/FailAbsoluteFloating (x & y directions)Aligned to a pre-defined value (e.g. 0 dB at 1 kHz)

Automatically print display layout to default printer or HTMLData export to TXT files.

Stimulus

AnalysisFrequency:

Distortion:

Recall

Limits

Printing

Measure Input and Output sensitivities for transducers, amplif iers, and signal conditioning devices Calibration with external, absolute source including acoustic, vibration, or voltage.Complex Equalization of input and output devices (e.g. microphones and amplifiers).

Sine (stepped – any linear or logarithmic resolution, and log sweep)Multi-tone with linear or logarithmic spacingNoise (pink & white with user-defined bandpass range)Arbitrary (any WAV file)Equalization

FFT & DFT (any size)Auto-spectrum & Cross-spectrumFrequency and phase response including harmonics

VA-Audio2 used in Headphone Measurements

Microphone Frequency Response using VA-Audio2

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ARTIFICIAL EAR AND MOUTH SIMULATOR

AE002/AE711/AM012

Artificial ear is designed to simulate human ear to test what human can hear.

AE002 conforms to IEC60318 and ITU-TP.57 Standards. It can be used in the audio test of telephone or cell phone.AE002 can be used with BSWA pressure field microphones.

Mouth Simulator is designed to simulate the sound field around the human mouth. It can be used to test the telephone mouthpieces

AM012 is the mouth simulator designed and manufactured by BSWA. AM012 conforms to IEEE 269, 661 and ITU-T Rec. P51 standards.

AE711 is designed to test different types of cell phones on the product line.

A E 7 11 a r t i f i c i a l e a r conforms to IEC711 and ITU-T P.57 standard. I t i s s u p p l i e d w i t h MP253 pressure field microphone.

SPECIFICATIONS

ModelStandardMicrophone as OptionMicrophone Preamplifier as OptionTest ParametersDiameterWeight

ARTICICIAL EARS AE002/AE711AE002IEEE 60 318 ; ITU-T Rec. P57MP251/MP253 Pressure Field Microphone

MA211 ICP

Refer to MP251/MP253/MA21140 mm x 120 mm1.2 kg

AE711IEC 711 ; ITU-T Rec.P57MP253 Pressure Field Microphone

MA221 ICP

Refer to MP251/ MA22123.8 mm×36.5 mm100 g

MOUTH SIMULATOR AM012

Standard

Level at MRPMouth OpeningLoudspeakerLip Ring External DiameterLip Ring Distance from MouthDiameterHeightWeight

IEEE 269, IEEE 661 and ITU-T Rec. P5194 dB (200 Hz - 8000 Hz)20 mm diameter8 ohm/20 W

40 mm

10 mm

100 mm98 mm1.1 kg

SPECIFICATIONS

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ARTIFICIAL HEAD

BHead 200

BHead200 is an artificial head for acoustic measurement and recording. The BHead200 has simple design concept, which is “TO PUT MICROPHONES IN THE EARS”. There is no fancy electronics or digital processing in the BHead200, just two microphones. The BHead200 accurately reproduces all acoustically relevant parts of the human outer ear, allowing aurally accurate binaural recordings of sound events. The main features are:

Simple design and easy calibrationUsing two ICP microphones, the signals can be directly to the analyzers and recordersExcellent phase matched microphones to ensure the binaural effects of hearingLarge dynamic range from 25 dBA to 135 dBA

BHead200 uses analog techniques for signal output. This technology eliminates any additional errors causing by digital converters and filters. It can be used in the same way as conventional microphones.

Applications

BHead200 is designed for wide range of applications.

Binaural recordings for sound qual i ty analysis. Testing for headphones, earphones and audio products.Stereo recording for performing arts. Measurements of hearing protectors

ARTIFICIAL HEAD BHEAD 200Microphones TypeSensitivityFrequency RangePower RequredDynamic RangeBackground NoisePhase MatchSen. MatchCrosstalk Output Tripod ThreadWeight

MP251-40 dB (10mV/Pa)20 Hz ~ 20 kHz ICP 25 ~ 135 dBA <25 dBA± 0.5 º up to 8000 Hz ± 0.2 dB- 80 dBBNCUNC 3/8”6.0 kg

SPECIFICATIONS

Phase differences of two microphones in BHead �00

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ANECHOIC TEST BOX

XS Series

BSWA Anecho ic Tes t Box i s des igned for acoust ic measurements in the noisy environments. The functions of the anechoic test box are:

P r o v i d i n g a f r e e f i e l d c o n d i t i o n f o r measurementsEffectively isolating the environmental noise

BSWA has a number of years of experiences in designing and building the box for various industries. The main applications are:

Mobile phone acoustic testing in production lines Audio components testing for quality controlNoise level measurements for computer partsNoise testing for electrical parts in automotive

The XS Series Anechoic Test Box is made from steel sandwich panels with sound absorption material as fillings. The internal surface is perforated to provide sound absorption, while the external metal panel provides the sound

The Anechoic Text Box is a low cost alternative to the anechoic chamber. The correction factors can be determined by comparison of the measurements in the chamber and box.

The noise reduction of 30 dBA is achievable in normal factory environmental by BSWA metal panels. The customer design is available when the higher noise reduction is required.

BSWA is capable of providing the testing system with the anechoic test box. The customized testing system is developed using National Instruments LabView with BSWA hardware.

SPECIFICATIONS

Frequency (Hz)TL (dB)Absorption Coefficients

ACOUSTIC PROPERTIES OF METAL PANEL6327

12530

0.94

25032

1.19

50041

1.11

1K50

1.06

2K59

1.03

4K67

1.03

8K71

1.04

STC/NRC45

insulation. Optional Sonex sound absorption foam can be added to the internal surface to increase the total absorption.

The Anechoic Test Box is non-standard product; it requires the understanding of the customers’ needs. BSWA will take power supply, cables, microphone fixture, and operation of the device under test into consideration when making the design.

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DATA ACQUISITION INSTRUMENT

MC3022/MC3522/MC3242

MC3022 is a USB powered Plug-N-Play measurement soundcard with two ICP input channels and one output source channel. MC3022 is based on 16 bit A/D converters with two-channel simultaneous sampling frequency of 44.1 kHz. It is the perfect start to building your own two-channel sound and vibration measurement system.

MC3522 i s d e v e l o p e d t o meet the need of audio testing, where a sma l l power amplifier

MC3242 is a 4-channel hardware designed using NI 9233 data acquisition card. It can analyze acoustic and vibration signals acquired simultaneously from its 4 channels. MC3242 has two signal output channels.

MC3242 is designed for BSWA VA-Lab software. It can be used for sound transmission loss test with BSWA impedance tubes. It can also be used in general acoustic or vibration measurements.

The input channels can be connected t o a n y I C P p o w e r e d s e n s o r a n d when using BSWA ICP microphones (MPA201/215/216), MC3022 is capable of measuring acoustic signals from an amazing 35 dBA to 118dBA without any change in signal gain. The output channel is capable of providing a 1.0 Vrms source signal to speakers, shakers, and other devices.

The MC3022 i s des igned fo r VA-Lab acoustic measurement software developed by BSWA. It also works with a number of software including WinMLS, DIRAC, EASERA, Audio Tester, Listen, ETF, Noise Book, Spectral Plus, and LabView, just to name a few.

is required to drive the loudspeakers. MC3522 has a built-in 5W power amplifier with a lockable knob.

The MC3522 is USB powered for measurements. It required 220V or 110V power supply when the power amplifier is switched on.

MC3522 can also be used with BSWA impedance tube and BSWA VA-Lab software to test the Sound Absorption Coefficient of material.

SPECIFICATIONS

ModelInput ChannelMax Input VoltageOutput ChannelMax Output VoltageFrequency ResponseConnectorA/D ConverterMax. Sampling FrequencyInternal NoiseFrequency Response (Ref: 250 Hz, + 0.5 dB/-1.0 dB)Measurement Range(With MPA201)Power Requirement

DATA ACQUISITION INSTRUMENT MC3022/MC3522/MC3242

2, ICP (4 mA)1.0 Vrms

4, ICP (4 mA)3.5 Vrms

2

20 Hz ~ 20 kHz

24 bits50 kHz

30 ~ 130 dB (A)

MC3022 MC3522 MC3242

1 1, with 5W power amplifier1.0 Vrms

BNC

30 dB (A) 20 Hz ~ 20 kHz

IEC 61672 Type 2

16 bits44.1 kHz

35 ~ 118 dB (A)USB USB (220/110 V when power amplifier works) USB

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2 & 4 CHANNEL ANALYZER

BSWA VA-LAB 2/4

VA-Lab 2/4 represents the most cost-effective 2 or 4-channels solution for all your needs in Acoustics Measurement and Analysis.

A complete set of application oriented modules for measurements and analysis of acoustic signals.

Features

Simultaneous real-time 2/4 channel FFT, 1/n octave, and cross-spectra, etc. Long term noise monitoring for environmental noise analysis or product noise monitoringM e a s u r e m e n t o f s o u n d a b s o r p t i o n coefficients in impedance tube according to ISO10534 -1 and ISO10534-2Measurement of sound transmission in impedance tube using four-microphone technique (VA-Lab4 only)M u l t i - c h a n n e l r e v e r b e r a t i o n t i m e measurementsMeasurement of Sound Insulation between rooms and automatic calculation of Indices.Sound power measurements based on ISO 3745 with 2/4 channelsSound Intensity measurements and partial sound power calculationsAudio analysis for frequency responses and harmonic distortions.Data recording and playback

Applications

Technical Specifications

MC3022: 2 channel ICP inputs; 2channel outputs; USB powered. Recommended for field uses

MC3522: 2 channel ICP inputs; 2channel outputs; USB powered, built-in power amplifier to drive loudspeakers (needs 220V AC power for amplifier) Recommended for impedance tube; and audio analysis

VS302USB: 2 channel ICP inputs; 2channel outputs; 220V AC powered. Recommended for Lab uses.

VA-Lab4 supports the following hardware from BSWA:

Building industry, Materials, Construction Machines, Environmental, Electric appliances/IT, and Household appliances.

MC3242: 4 channel ICP inputs; 2channel outputs; USB powered. Recommended for field use

MC3642: 4 channel ICP inputs with gain x1, x10, and x100; 2 channel outputs. Recommended for lab use.

VA-Lab2 supports the following hardware from BSWA:

�� VA-Lab2/4 Standard Functions

VA - L a b H a r d w a r e m a n a g e m e n t & configuration Transducers and CalibrationsSignal recording: Direct-to-disk (PC) Signal playback to earphoneSignal playback to analyzerStatistics: RMS, RMS in band, Leq, Min, Max, Peak, P-P, Average, Disparity, Skew, Kurtosis, Statistics vs. time Narrow Band Analysis up to 12,800 lines (from 20Hz to Max Bandwidth and zoom) Broad Band Analysis up to 1/24th (from 20Hz to Max Bandwidth) Average FFT, Average Cross Spectrum, Average 1/n analysis Octave vs. TimeReal time DisplaySine, Peak/Noise Noise; Sweep; Multi-tone User defined signal in .Wav formatsVibration Measurements (VA-Lab4 only)

2 & 4 CHANNEL ANALYZER

BSWA VA-LAB 2/4

VA-Lab Optional Software Modules

Environmental Noise Monitoring: RMS, RMS in band, Leq, Min, Max, Peak, P-P, Ln , 1/3 Octave vs time. Reverberation Measurements Sound Intensity MeasurementsSound Power Measurements using 2/4 channelsSound Insulation between rooms using 2/4 channelsSound absorption measurements in the impedance tubeSound transmission loss measurements in impedance tube (VA-Lab4 only)Sound absorption measurement in R-Cabin or reverberation room (VA-Lab4 only)Audio signal analysis for frequency response and total harmonics distortion.

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VA-LAB SOFTWARE OVERVIEW

VA-Lab

VA-Lab is acoustical measurement software developed by BSWA. VA-Lab takes the advantage of computer power and performs all signal analysis within the computer. VA-Lab supports BSWA Data Acquisition Hardware and Microphones. It is an affordable and easy to use acoustic measurement software.

VA-Lab is developed based on the international standards and BSWA experiences in acoustics. These experiences span from environmental, architectural, industrial, and audio acoustical measurements. VA-Lab has module design with the special applications according to ISO standard requirements, such as Sound Power, Sound Insulation, and Impedance Measurements.

BASIC: FFT based signal analysis for vibration and acousticsENV: Sound pressure level and environment noise measurementsIMP: Two and four microphone methods for absorption and TL measurements in Impedance tube according to ISO10534

SI: Sound intensity measurementsREV: Reverberation time measurements according to ISO3382 TL: Sound Insulation measurements for building material according to ISO 140.POWER: Sound Power Measurements according to ISO3745AUDIO: Audio testing by using stepped sweeping, frequency response and THD are tested at one time

The VA-Lab function modules include:

Main Features of VA-Lab BASIC:FFT Analysis: general signal analysis including FFT,CPS, Transfer Function, C o h e r e n c e , A u t o C o r r e c t i o n , C r o s s Correction, Cepstrum, etc. Data can be captured and saved in real-time mode1/n Octave: general 1/n octave analysis for sound and vibration signals, n=1,3,6,9,12,24Calibration: user selection of sound or vibration calibration Signal Generator: sine, square, triangle, sawtooth wave, white noise, pink noise, frequency sweep, multi-tone, tone burst, wavefile, etc.Record: Wave file or time series signal record and play back

VA-Lab software works with MC3022, MC3522, MC3242 and NI Compact DAQ hardware. The MPA201 microphone is commonly used with the VA-Lab systems.

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ARCHITECTUAL / ENVIRONMENTAL MODULES

VA-Lab ARCH / ENV

VA-Lab ARCH module provides reverberation time measurements and sound transmission loss measurements according to ISO standards.

Two methods: interrupted noise, impulse response measure reverberation time in 1/1 or 1/3 octave frequencies according to ISO 3382Sound pressure decay curves display, support user-defined reverberation time calculationAirborne sound insulat ion of bui ld ing elements MeasurementMeasurements of impact sound insulation of floorsAutomatical ly calculate single-number quantity: Rw, Xw, and its spectrum adaptation

Main Features of VA-Lab ARCH

Environment ModuleArchitectural Module

Simultaneously measure SPL, RMS, MAX, MIN, PEAK, LEQ, SEL, L10, L50, and L90 A, C, Lin weightingFast, Slow, ImpulseContinuous, Time limited optionallySpectral data logger associated time history1/1 or 1/3 octave Real-time displaySound level analysis at user defined intervalsLong time monitoring of sound pressure levels, up to 5 hours in one graph

VA-Lab ENV is a powerful sound level meter. It supports maximum 10 channel sound pressure level measurements at 10 locations. Each channel can perform multi-task analysis such as statistical levels, 1/3 octave, and levels vs. time.

VA-Lab ENV has built-in data logger function, it can continuously log the overall and spectral data into the memory.

Using MC 3022 and MPA215 microphones, VA-Lab ENV satisfies IEC 61672 Class II accuracy requirements.

Main Features of VA-Lab ENV

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SOUND POWER MODULE

VA-Lab Power

In order to determine the sound power level produced by the noise source, one method is measuring the sound pressure level on the measurement surface enveloping a noise source.

VA-Lab Power module is specially designed to satisfy sound power level test according to

No limited to the number of microphone positions, but total number of positions measured simultaneously is limited by the channels of hardwareReal-time sound pressure level and spectrum measurementEnvironment correction according to ISO 3745 2003Correction for background sound pressure levels have two choice: correction sound pressure at each test point or at the average result of all test pointsCorrect ion for background noise wi th appointed range.(10~20dB ISO 3745, 6~15dB ISO 3744, 3~10dB ISO 3746, etc. )A and linear weightingTime-averaged sound pressure of each Octave frequency, Average time is optional

Main Features

Accessories RecommendedMC3022: 2-channel data acquisitionMC3242: 4-channel data acquisitionMC3012: 12-channel data acquisitionM C 1 0 1 2 : 1 2 - c h a n n e l m i c r o p h o n e conditioning with gain of X0.1,X1,X10MF720: Microphone hemisphere array with 20 positions

MF710: Microphone hemisphere array with 10 positionsMPA231: 1/2 “ prepolarized free-fi led measurement microphone, Type IMPA416: 1/4 “ prepolarized free-fi led measurement microphone, Type II

Sound Power Module ISO3745. With NI Compact DAQ and BSWA microphones, the noise level can be tested simultaneously in 10 channels; the sound power level is calculated automatically based on the measurement surface area.

With microphone conditioning unit MC104 (MC1010 is 10 channel version), the background noise can be below 20 dBA for some critical measurements.

A l l t he resu l t bu i l d i n measu remen t procedures are saved and can be ascended and checkedScalable solution

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SOUND INTENSITY MODULE

VA-Lab SI

The measurement of Sound Intensity provides information of magnitude and direction of the sound field, which is used in a variety of applications such as the determination of sound power and the noise source localizations.

VA-Lab SI module provides a simple system for sound intensity measurements. The system requires two-channel (or two channels of multi-channel) data acquisition hardware and intensity probe SI502. The measurements of sound intensity become very easy task.

Main Features

SIL and SPL real-time display in 1/1 or 1/3 OctaveLinear, A, B, C weightingEnvironment correctionAverage setting optionalResidual Index of Intensity and pressureResult can be saved for further analysis: sound power

Most Economical & Portable Solution

MC3022: two-channel DASI002: Intensity ProbeVA-Lab SI Module: Software

Sound Intensity Module

3 pins Lemo Plug

BNC Plug

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IMPEDANCE TUBE MODULE

VA-LAB IMP

VA-LAB IMP is the software module for impedance tube measurements. It supports sound absorpt ion and sound insu la t ion measurements in BSWA SW series impedance tubes. The software works with BSWA MC3522 and MC3242 hardware for data acquisition and analysis.

VA-Lab IMP supports two methods to measure the absorption coefficients of material.

Method us ing S tand ing Wave Ra t i o (ISO10534-1）Transfer Function Method (ISO10534-2）

The Standing Wave Ratv io（SWR） is a traditional method, which needs to generate a standing wave in the impedance tube. VA-Lab can calculate the absorption coefficients by capturing the maximum and minimum value of the sound pressure in the tube. The other acoustic parameters such as reflectance coefficient, impedance ratio, and admittance ratio can be calculated based on the first minimum position of the pressure.

Main Features of VA-Lab IMP

The Transfer Function Method uses two fixed microphones to acquire sound pressure near the sample. VA-Lab IMP can accurately separate the incident wave and reflected wave, then calculate the absorption coeff icients. An extended frequency range can be obtained from the combination of measurement results gained in different diameters of the tubes. It automatically calculates the acoustic properties of material at a wide frequency range of interests.

VA-Lab IMP supports four microphones transfer function method for sound insulation measurements. It uses the published formula to calculate the transmitted energy through the sample, and then calculate the TL values.

Two methods to measure the absorption coefficientsBuilt- in tone generator (Method using STANDING Wave Ration)Capture the Maximum and Minimum lever then calculate the absorption automatically when using standing wave ratioBuilt-in pink noise generator (Transfer Functin Method)Meteorological information usedThree kinds of tube and support user-defined sizeGives linear & Octave data synchronouslyThe data measured on different tubes can be combined into full-frequency

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AUDIO ANALYZER MODULE

VA-Audio

VA-Audio is a software module for characterizing t h e p e r f o r m a n c e o f electroacoustic products, aud io e lec t ron ics , and t r ansduce rs . W i th t he s impl ic i ty o f opera t ion required for product ion line QC, yet the extensive

Modes of Operations: Stepped Sine, Frequency Sweep, Multi-tone, and User-definedStepped Sine: Supports 1/1, 1/3, 1/6, 1/9, 1/12 Octave or User-defined frequencies. The user defined time intervals Frequency Sweeping: Supports linear and logarithm sweeping Multi-tone Test: Supports up to 15 frequency tones User-defined Mode: Supports signal generator( Sine, square, sawtooth, White noise, and Pink noise, wavefile, tone burst); time signal recording and post-processingControl Limit: Easy set-up limits for quality control. Pass/Failure indicationReal-t ime Frequency Analysis: Frequency response and THDHarmonic Distortion: supports maximum 30th order of harmonic distortion. User defined distortion analysisLoudspeaker Calibration: Automatic adjustment for output signals to make flat response of sound sources. Sensitivity Test: Supports microphones and transducer testingSignal Analysis: Supports FFT, 1/n octave, and sound pressure level Free filed correction: used for standard microphone testData Freeze: current data can compared with the fore data

Main Features of VA-Audio:analysis tools necessary for R&D, VA-Audio is suitable for use throughout the design and manufacturing process.

BSWA audio test system consists of VA-Audio software, MC3522 data acquisition hardware, and microphones. The artificial mouth and artificial ear is optional items for audio measurements.

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SOUND LEVEL METER

BSWA 801/803/805

BSWA 800 series Sound Level Meter is the OEM version of Svantek Sound Level Meter with integration of BSWA microphones. There are three models with different configure.

BSWA 801 is a Low cost Sound and Vibration Analyzer with time domain signal recording option. It is Class 1 sound & vibration level meter with many analysis capabilities, such as reverberation time, loudness, and FFT. It is intended to general acoustic and vibration measurements and analyses, All the test dada can be saved in instrument

or exterior USB disk, and the data can be downloaded easily to PC for more application.

One Profile

Time history

Three Profiles

Octave Analysis

BSWA 805 is all digital, Class 1 sound level meter intended to general acoustic measurements, environmental noise monitoring, occupational health and safety monitoring.

BSWA 803 is Class 2 sound level meter along with analyzer. It is intended to general acoustic measurements, environmental noise monitoring, occupational health and safety monitoring.

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SOUND LEVEL METER

BSWA 801/803/805

SPECIFICATIONS

ModeStandard

Level Meter

OCTAVE

FFT

Reverberation timeLoudnessVibrationDose MeterWeighting FiltersRMS DetectorRange

Linearity Range

Frequency Range

Dynamic Range

Time history

InputDisplay

Save

Interface

Power SupplyTemeratureHumiditySizeWeight

IEC 61252*A, C, Linear

Fast, Slow, Impulse

IEC 61672 Class 1 IEC 61672 Class 1 IEC 61672 Class 2

No

No

NoNoNo

1/1 Octave*

FFT analysis(1920 lines in up to 22.4KHz band)*

NoNoNo

1/1 Octave1/3 Octave*

FFT analysis(1600 lines in up to 20KHz band)*

YesYesYes

18dBA(RMS)~141dBA(PEAK)25dBA(RMS)~141dBA(PEAK)

20 Hz~20 kHz

120dB

RMS / Max / Min / Peak results to internal memorywith logging step down to 2 msor to external USB flash disk *


10 Hz~20 kHz

120dB(Lever meter)100dB(Analysis)


0.5 Hz~20 kHz(accelerometer dependant)

100dB

RMS / Max / Min / Peak results to internal memorywith logging step down to 2 ms*or to external USB flash disk *Time domain signal recording on USB flash disk*

RMS / Max / Min / Peak results to internal memorywith logging step down to 2 msor to External USB flash diskTime domain signal recording on USB flash disk*

ICP type，TNC connectorLCD 128x 64 with backlighting

16MB flash typeExternal USB flash disk *

USB 1.1 ClientUSB 1.1 Host*

16MB flash typeExternal USB flash disk *

USB 1.1 ClientUSB 1.1 Host*

32MBflash typeExternal USB flash disk

USB 1.1 ClientUSB 1.1 Host

4AA alkaline batteries or rechargeable batteries / External power supply / USB interface-10°C to 50°C

Up to 90%335 x 82 x 42 mm

About 610 g300 x 82 x 42 mm

About 600 g338 x 82 x 42 mm

About 600 g

Mode 805 803 801

Notice：* is optional module

SPL, Leq , SEL, Lden , Ltm3 , Ltm5 , statistics - Ln (L1÷L99), LMax , LMin , LPeak , Time History Simultaneous measurement in three profiles with independent set of filters and detector time constants

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OUTDOOR NOISE MONITORING TERMINAL

NMT 1000

NMT 1000 is a powerful, intelligent noise monitoring terminal, optimized for outdoor use. NMT 1000 is a Hyper-Integrated noise monitor system that can be left unattended as part of an environmental noise monitoring system for mobi le, permanent and semi-permanent monitoring. NMT 1000 terminal can store 12-48 days noise data and transit that over GPRS. It can be used in all climatic environments, especially suitable for industrial, city and field. The noise monitoring terminal can be remote controlled by PC over GPRS.

Sealed encloser meet IP65 standardSuitable for stable, long-term, continuous outdoor monitoringThe power of NMT-1000 is possible form a variety of sources, for example an external UPS can be connected replace the 220V supplyRemote operation via GPRS, also can be control via USB16M industrial flash memory for safe, long-term back-up, the flash memory can be enlarge to 64MOnboard high stable and extremely accurate real-time clock (RTC), within ±2 minutes per year accuracy from -20°C to +70°C.1-second Leq or SPL measurementsDynamic range of 100 dBThe configuration software and post-process software operate on MicrosoftR WindowsR 2000 or XPPost process software can create periodic statistical reports include SPL, Leq, Ln, Lmin, Lmax, LdnIndependent system Supervisor, make sure that the system can be reboot from shut down or other accidentThe NMT can be conf igure, cal ibrate and download data via GPRS or USBAll-weather operation

UsesAirport, City, traffic, Industrial noise monitoringUninterrupted noise monitoring

Features

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OUTDOOR NOISE MONITORING SOFTWARE

Bird 1.0

Download noise data via GPRS and USB and save as .txt file.Configure and operate the NMTCalibrate NMTCheck the status of NMT and get the system informationDownload the terminal operation log fileCan access up to 255 terminalUpdate version can provide more functions

VA-LAB Outdoor Software Bird 1.0 for terminal NMT-1000 is used to configure, download noise data (1-second Leq or SPL) and check the status of the system. It also can set the terminal date and time. Bird 1.0 can operate via GPRS and USB. The NMT can store data in terminal memory, and Bird 1.0 can download the noise data and save it as .txt file which can be input to VA-LAB outdoor.

Calculate Ln, Ldn, Lmax, Lmin, Leq for different period.Create curve with different average timeCreate periodic statistical reports

Bird 1.0 Configuration Software:

VA-LAB Outdoor Post-process Software:

The VA-LAB Outdoor post-process software of NMT-1000 performs all the analyses needed for environmental noise measurements. It can calculate Ln, Lmin, Lmax, etc. All values can be calculate for different period and create curve with selected average time. For example, you can get the statistical information for a whole day or every hours including Total Leq distribution. The quick results for a select period calculating Leq, maximum values, minimum values and three L

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MID-FREQUENCY VOLUME SOURCE

VSS210

VSS210 Volume Source is a mid-frequency volume source. It is ideal acoustical source for reciprocity measurements and TPA analysis. VSS210 uses a power speaker driver to deliver up to 125 dB over the frequency range from 200 to 10,000 Hz.

Two phase matched MPA416 microphones is installed at 2 cm apart in the outlet. The microphones provide the sound pressure and phase information for calculating the volume velocity radiated from the outlet.

VOLUME SOURCE VSS210NONE8 Ω100 W continuous200 Hz ~ 10 kHz120 dB Pink NoiseAudio ConnectorCompassion Diver 100 W30 mm3 m5 kg

420 x 420 x 320 mm

SPECIFICATIONS

StandardsNominal ImpedancePower HandlingFrequency RangeSound Power LevelConnectorLoudspeaker UnitTube DiameterTube LengthWeightCarrying Case Dimensions

Frequency Response of VSS�10 Measured at � cm from Outlet in the Anechoic Chamber

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OMNI-SOUND SOURCE & POWER AMPLIFIERS

OS002/PA50/SWA100

The OS002 Omni Sound Source and SWA100 Power Amplifier are ideal match for frequency response measurements, including Acoustic Reciprocity and Maximum Length Sequence (MLS) method.

PA50 is a single-channel power amplifier with a power at 50W. Designed to be light weighted, PA50 is equipped with protection circuit that other power amplifiers of higher price have.The PA50 is ideal unit for impedance tube and audio testing.

SWA100 Power Amplifier produces an amazing 100W per channel at 8 Ωfor its incredibly compact size and low weight. It has the same features and protection circuits normally found only in more expensive, larger, and heavier amplifiers. Its two channels can be used independently of each other and uses BNC connectors for input signals. The SWA100 is specially designed to use passive cooling removing the need (and noise) of a cooling fan.

OS002 Omni Sound Source uses 12 matched loudspeakers in a dodecahedral co n f i g u r a t i o n . Th i s ach ieves a s p h e r i c a l d i s t r i b u t i o n

OMNI-SOUND SOURCE OS002Standards

Nominal ImpedancePower Handling Frequency Range Sound Power LevelConnectorLoudspeaker UnitsDiameterWeightCarrying Case Dimensions

ISO130-3; ISO3382; DIN522106 Ω200 W continuous125 Hz ~ 4 kHz 115 dB Pink NoiseAudio Connector4” Diameter; 8 Ω; 25 W300 mm10 kg320 x 320 x 320 mm

SPECIFICATIONS

POWER AMPLIFIER PA50Audio Power Power SupplyDimensionsWeight

50 W 220 V/110 V270 x 220 x 120 mm3.5 kg

POWER AMPLIFIER SWA100Audio Power Power SupplyDimensions(including case) Weight

100 W 220 V/110 V

495 x 430 x 150mm

12 kg

pattern satisfying ISO 140-3 and ISO 3382 requirements. When connected to the SWA100 Power Ampli f ier, OS002 can del iver the remarkable output power of 115 dB.

Al l 12 specia l ly se lected speakers are connected in a series-parallel network to ensure both in-phase operation and matching impedance to the SWA100 Power Amplifier. The speaker enclosure is all metal providing a rugged, solid construction resulting in high acoustic performance. The OS002 is compact and less than 12" (30 cm) in diameter. With its high output power, it's an ideal choice for sound insulation, acoustic reciprocity, and many other sound source measurements.

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TAPPING MACHINE

TM002

TM002 Tapping Machine is a rugged, self-contained sound source for making footfall noise measurements to the latest international standards (ISO140, EN 20140, ASTM E492, GB J75-84, etc.).

FeaturesErgonomic case for easy transportationFive 500 g hammers with 40 mm falling heights10 impacts per secondSolid aluminum base for stable operationReduced machine noise via belt driveLong lasting industrial drive motorNo metal-to-metal moving parts resulting in less wear and smooth operationBoth 220V AC and 110V AC powered units available

Principle of OperationThe TM002 uses an industrial 25 watt AC motor turning five cams via a belt drive for quiet operation. The cams in turn lift the hammers which fall 40 mm to impact the solid and durable base plate at a rate of 5 impacts per second. The base is made from 3/16"(50 mm) solid aluminum making the unit very stable during operation.

MaintenancesSpecial consideration was given to all the moving parts of the unit. No metal to metal contact is allowed. Teflon washers and spacers are used to guide the hammers, reducing friction, wear, noise, and maintenance.

TAPPING MACHINE TM 002Standards

Hammers

Impact Frequency

Impact Forces

Motor

DimensionsCarrying Case

Net Weight

Power supply Fuse Operating Temperature Operating Humidity

ISO140, BS5821, GBJ75-84, ASTM492, EN 20140 Five in line, 100 mm between each hammer, single hammer weight 500±2.5%Each hammer operates at 2Hz; tapping frequency for unit is 10±0.3Hz Equivalent free-fall height of hammers 40 mm 220 V, 50 Hz AC Main, Or 110 V, 60 Hz AC Main Rating Power: 25 W465 x 245 x 280 mm555 x 310 x 400 mm22.5 kg (29.5 kg including the case) 110 V or 220 V AC P 1.5A

-10°C ~ 50°C

0 ~ 98% RH

SPECIFICATIONS

STANDARD ITEMS INCLUDEDTM 002

Power Cable

Carrying Case User’s Manual

1 1 (Please specify the power p l u s , U K , U S A , J a p a n , Germany, Australia) 1 1

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ACCESSORIES

Cables

BSWA provides a wide range of standard accessories.

Cables

Model CBBnnn: BNC to BNC cables used to connect BNC microphones or transducers with date acquisition system or test equipment. Model number indicates cable length (i.e. BB020 for 20 m.)

Model CUBnnn: 10-32 UNF (or M5) to BNC cables commonly used to connect accelerometers or other transducers to acquisition system and analyzers. Model number indicates cable length. Also available are cables suitable for high temperature environments.

Model CSBnnn: SMB to BNC cables used for connecting SMB microphones to acquisition input channels.

Model CUUnnn: 10-32 UNF/M5 to 10-32 UNF/M5 Cables. Also available are cables suitable for high temperature environments.

Model CSSnnn: SMB to SMB Cables.

Model CLL7nn: 7 Pin LEMO female to 7 Pin LEMO male Cables. It is used with MV201 preamplifier.

Model CLS8nn: 8 pin LEMO male to 8 SMB connectors Cable. It is used with the microphone array.

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WS002-3: Elliptical windscreen for 1/2” microphones.

ACCESSORIES

Adaptors and Windscreens

Windscreen

WS002-9: 90 mm diameter, spherical windscreen for 1/2” microphones.

WS002-5: 50 mm diameter, spherical windscreen for 1/2” microphones. Also available is 50 mm diameter windscreen for 1/4” microphones.

TA042: Adaptor for 1/4’’ microphone and 1/2’’ preamplifier.

NC002: Specially designed windscreen for 1/2” microphones exposed to high winds.

M001: Specially designed for use with ICP preamplifier to test the back-ground noise of the system.

Microphone Adaptor for Preamplifier

Nose Cone

Dummy Microphone

FC002: Used for fixing the microphones to the fixture such as the MF710/720. it can also help to adjust the position of the microphone on the fixture.

Microphone Fixing Connector

BSWA Technology - AUROLEX

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