As-TB-A14 Band Sensor Applications

ISO 9001:2008 Registered

Thickness Monitoring with temate® BAND Application Sheet

Rev. AS-TB-A14

© 2014 Innerspec Technologies, Inc. All Rights Reserved

This Material May Not Be Published, Rewritten,

or Redistributed Without Express Permission

Thickness Measurement with EMAT Band

AS-TB-A14 of 24 ISO 9001:2008 Registered

Table of Contents 1. Introduction & EMAT Technique ................................................................................................................ 3 2. Equipment Options ..................................................................................................................................... 3

2.1. Instrumentation ................................................................................................................................... 3 2.2. Band Sensor (<200ºC) ....................................................................................................................... 4 2.3. Accessories ........................................................................................................................................ 6

2.3.1. Multiplexer 1:8 Channels .............................................................................................................. 6 2.3.2. Cables .......................................................................................................................................... 6 2.3.3. Thermocouples ............................................................................................................................ 6

3. Configuration, Setup and Operation of temate® PowerBox H. ................................................................... 7 3.1. Equipment Configuration .................................................................................................................... 7 3.2. Band Graphical User Interface ........................................................................................................... 8

3.2.1. Band Mux Widget and A-scan View ............................................................................................. 8 3.2.2. Band Mux Widget and Bars View ................................................................................................. 9 3.2.3. Band Mux Widget and Trend View ............................................................................................. 10

3.3. Band Menu Tab ................................................................................................................................ 11 3.4. Setup Guide ...................................................................................................................................... 12 3.5. Setup File Parameters ...................................................................................................................... 13

4. Operation ................................................................................................................................................. 13 4.1. Calibration Using Auto-Correlation (ACF) Algorithm ........................................................................ 14

4.1.1. Detailed Procedure .................................................................................................................... 14 4.2. Calibration Using Zero-Crossing Algorithm ...................................................................................... 16

4.2.1. Detailed Procedure .................................................................................................................... 17 4.3. Compensating Velocity for High Temperature Measurements ......................................................... 19 4.4. Manual Data Recording .................................................................................................................... 20

4.4.1. Reviewing Record or Data Files ................................................................................................. 20 4.5. Automatic Data Recording ................................................................................................................ 21 4.6. Naming Data Files ............................................................................................................................ 21 4.7. Generating Reports .......................................................................................................................... 22

4.7.1. Reports with A-Scan display ...................................................................................................... 22 4.7.2. Reports with Bars display ........................................................................................................... 23 4.7.3. Reports with Trend View ............................................................................................................ 24



1. Introduction & EMAT Technique • EMAT ultrasonic is an ideal method for thickness measurements on conductive materials. The

advantages include: o Dry, non-contact inspection permits inspection of very hot (up to 1000ºC) and very cold

materials. Lack of couplant also provides extremely reliable and repeatable inspections with micrometer accuracy.

o Imperviousness to surface conditions. The materials can be coated, rough or dirty thus eliminating the need for conditioning the part for measurement.

o Easier probe deployment. Not having wedges or couplant, Snell’s law of refraction does not apply, and the angle of the probe does not affect the direction of propagation. This makes them easier to control and deploy, especially in automated environments.

• EMAT sensors can be used in pitch-catch (separate transmitter and receiver) or pulse-echo (same transmitter and receiver) mode.

• The most common wave modes used for thickness measurement are Longitudinal (L) or Shear Horizontal (SH). SH waves can be very easily generated on both ferromagnetic and non-ferromagnetic materials whereas L waves are more difficult to generate on ferromagnetic materials. This Application Sheet covers thickness measurements using EMAT Band (array of 8 sensors) which generates SH wave mode in all materials.

2. Equipment Options 2.1. Instrumentation Innerspec offers temate® PowerBox H with Innerspec Technologies Open Platform (ITOP) software that supports a variety of different applications including the additional software module called “Band” to operate EMAT Band sensor. This is a hand-held, battery operated single channel instrument.

temate® PowerBox H

For detailed Technical Specifications of the instrument, visit our website or contact Innerspec Technologies.



2.2. Band Sensor (<200ºC) Our high-temperature Band sensor has 8 independent thickness measurement sensors with integrated magnet and RF Coil. Emat Band Sensor comes with two different configurations. In first configuration, all 8 sensors are in-line, whereas, in second configuration the sensors are arranged in 2 rows of 4 sensors each. Consult our Catalog of Standard Sensors & Accessories for detailed Technical Specifications.

Part Number

& Layout

Wave Mode

EMAT Type

Magnet Type

Maximum Temperature

and Time w/o Active

Cooling

Connector Dim. Applications,

Range and Accuracy3

274A01941

8 x 1

SH Spiral Lorentz Permanent <200ºC

Unlimited 16-Pin

Lemo 3B

W x L x H

(3.0 x 18 x 1.65) inch

(76 x 457 x 42) mm

Thickness Gage

Range

1-100mm Acc.

0.0125mm

274A01952

4 x 2

SH Spiral Lorentz Permanent <200ºC

Unlimited 16-Pin

Lemo 3B

W x L x H

(5.0 x 10 x 1.65) inch

(127 x 254 x 42) mm

Thickness Gage

Flaw Detection

Range 1-100mm

Acc. 0.0125mm

1 Band 274A0194 has eight radially polarized sensors arranged in 8 x 1 in-line configuration.



1 Band 274A0195 has eight radially polarized sensors arranged in 4 x 2 in-line configuration.



2.3. Accessories 2.3.1. Multiplexer 1:8 Channels Required for temate® PowerBox H to operate Emat band Sensors. The multiplexer switches the single transmitter channel to each sensor in the band in a sequential manner and records results from each sensor.

Part Number

Type & Frequency

Magnets & Sensors

Minimum Cables

Required*

Connector Instrument

Connector RF Coil Dimensions

279A00091 1:8

Multiplexer Pulse-Echo

All Normal Beam except

160A0046

1-232A0123 Not Applicable

(snap-on Module)

6 Pin Lemo 1B 16 Pin Lemo 3B 19 Pin Lemo 2B

Type K Mini

4.16”W x 4.48”D x 3.63”H 105mm x 114mm x 92mm

1 Multiplexer will be snapped-in at the top side of temate® PowerBox H.

2.3.2. Cables These Cables would be needed to connect band sensors to Multiplexer.

Part Number Length Connector Instrument

Connector Multiplexer

Connector Probe Instrument Description

232A0306 6’ (182cm)1 NA 1-16 Pin

Lemo 3B 1-16 Pin Lemo 3B

PowerBox H 1:8 Channel Multiplexer

8 Channel (16 Pin) Transmit or Receive RF Coil Cable

232V0597 6’ (182cm)1 Type K Mini Type K Mini 2- Pin

Type K Mini

PowerBox H 1:8 Channel Multiplexer

Thermocouple Cable Junction Box to Multiplexer

2.3.3. Thermocouples Band sensor includes a built-in independent thermocouple.



3. Configuration, Setup and Operation of temate® PowerBox H. 3.1. Equipment Configuration

temate® PowerBox H with Band Sensor

temate® PowerBox H 1x8 Channel Multiplexer

Permanent Magnet Probes Can Create Very Powerful Magnetic Fields Handle With Care



3.2. Band Graphical User Interface 3.2.1. Band Mux Widget and A-scan View Band Mux widget provides thickness readings from all 8 possible sensors in a tabulated way.

Mux Widget Description

Row-1 Indicates the Selected Sensor (S1, S2… S8).

Row-2 Enables or Disables a Sensor.

Row-3 Threshold Settings for each Sensor.

Row-4 Actual Thickness Measurements from each Sensor.

Row-5 Measurement Statistics. (MIN, MAX, DELTA and AVG)

Row-6 Calculated Measurement Statistics.

User can select the Mux Widget to browse various fields to enable/disable, edit or review A-scans. The Mux Widget is an extension to the Band Menu Tab and can be selected using Scroll Wheel or using Up/Down arrow keys while in Menu area, using the keyboard. After capturing data, individual sensors can be selected and the corresponding A-scan data from that sensor can be displayed in the display area. The background color changes to “RED” to indicate the selected sensor. The thickness measurement bar will display the thickness value and A-scan measurement bar will display the signal amplitude and TOF value for G2. The A-scan display area can be selected by pressing SEL key and cursors can also be activated using CUR key for doing any possible measurements and generating reports by pressing RPT button. The Report Generation is covered in more details later in the document. The SNAP button when pressed will generate a “.png” graphical snapshot of the screen along with “.csv” file containing current A-scan data being displayed on screen.



3.2.2. Band Mux Widget and Bars View

The Bars view provides a simpler interface to read thickness values from each channel with reference to the threshold value. The Bars display replaces A-scan display, thickness measurement bar and A-scan measurement bar. The red bars indicate the preset threshold value as per Row-3 of the Mux Widget. Whereas green bars indicate the current thickness value as measured from each sensor. The widget’s text color is normally white which changes into RED whenever the actual thickness value measured by the sensor fall below the preset threshold value. The A-scan is displayed for the current selection of sensor indicated with the background color changing into RED.



3.2.3. Band Mux Widget and Trend View

Trend View can display a number of Records. The Records can be selected on Band Menu Tab, and selection can be based on “Band #”, “Record Index number” (Entry), or by selecting a “Range of Dates”. User can also select “All” to display all the data recorded for a given Band number. The position of cursor in the Trend View can be manipulated using navigational keys on the keyboard. The position of cursor provides selection of a record. The details of the current record with all information Tags is displayed above the Trend View in “Trend View Information Bar”. The readouts from all eight sensors for the selected record are displayed below the Trend View in Mux Widget.



3.3. Band Menu Tab

Parameter Name Action

Live View Enables thickness Measurements using Band Sensors.

Mux Enabled Enables the Multiplexer to automatically switch between each Band Sensor

A-Scan In Live View the Mux Widget will be displayed with A-scan View

Bar Chart In Live View the Mux Widget will be displayed with Bar Chart View

Data Logging Automatically initiates Inspection and Records Data at a Pre-Selected Interval

Temp Correction Once Enabled Allows to Compensate Velocity Changes due to Temperature

Lock Locks the new Temperature Value for Temperature Correction

Trend View Enables to Review the Saved Data.

Band # Selection of Band # to Review Data in Trend View

Record Enables Selections of Records based on Index Numbers for Trend View

Record – From/To Select Record Index Numbers From / To for display in Trend View

Date Enables Selections of Records based on Dates for Trend View

Date – From/To Select All Records for the Dates Specified by From / To for Trend View

All Option to Select All Records for the Specified Band #

Site Optional Information to be Recorded with a Record

Band # Band Information to be Recorded with a Record. Each Band MUST be Assigned a Number to Sort the Data for Trend View

Tag 1 Optional Information to be Recorded with a Record

Tag 2 Optional Information to be Recorded with a Record

Record Directory Default Directory for Band Data - “band_recorded_data” User can specify new directory as needed

Record File Name Items Record File Name will be composed of all selected Information Tags

Save Option to Save Data with A-scan or without A-scan

Start Record Index at Option to Start Recording Data Starting at the Index Value



3.4. Setup Guide Standard Setup Files:

Material Thickness Standard Setup File

Highly Conductive (20% IACS or higher)

Aluminum, Copper, Nickel, Zinc

3 – 25mm Band-HC-SH-ACF-3-25mm1

6 – 9mm Band-HC-SH-ZC-6-9mm



Medium Conductivity (20% to 10% IACS) Most Carbon Steel

3 – 25mm Band-MC-SH-ACF-3-25mm1

6 – 9mm Band-MC-SH-ZC-6-9mm



Poor Conductivity (Less than 10% IACS)

Stainless Steel, Bronze, Titanium

3 – 25mm Band-HC-SH-ACF-3-25mm1

6 – 9mm Band-PC-SH-ZC-6-9mm



1 These Setup files use “Auto-Correlation (ACF)” algorithm for TOF Measurements. The ACF needs at least two back wall reflections to provide an accurate differential TOF reading for thickness measurements. * Each setup file is configured to measure ±1mm beyond the specified range as per naming convention used here.



3.5. Setup File Parameters

Setup File Frequency and Timing Signal Conditioning TOF Calculation

Band-MC-SH-ACF-3-25mm

Frequency – 3000 kHz Tone Bursts – 1 Cycles Data Window – 60 µsec

Gate 2 Start / Range– 7 / 26 µsec

Gain – 70 dB Coincidence Filter - 3

Averaging - 16 FIR Filter – 1 to 5 MHz

Auto-Correlation

Band-MC-SH-ZC-6-9mm


Gate 2 Start / Range– 7.5 / 8.5 µsec



Zero-Crossing

Band-MC-SH-ZC-9-12mm


Gate 2 Start / Range– 10 / 8.5 µsec



Zero-Crossing

Band-MC-SH-ZC-12-25mm


Gate 2 Start / Range– 7 / 12 µsec



Zero-Crossing

These parameters are included in the pre-configured standard Setup Files. These configurations can be modified to optimize the results on different applications. The types of modifications include: • Increase averaging to improve signal to noise • Increase Coincidence to improve signal to noise • Increase number of cycles to penetrate thick and attenuating materials • Decrease number of cycles for better axial resolution in thin materials • Adjust Gain to amplify the signal on display screen. • Always Re-Calibrate wherever possible to offset minor changes in ultrasonic velocity due to material

variations. Consult “temate® PowerBox H” User Manual for details on the operation of the equipment. 4. Operation • Connect Sensor and thermocouple if needed. • Power on temate® PowerBox H. • Select “OPEN” to load the standard Setup File for your application (see Setup Guide).



4.1. Calibration Using Auto-Correlation (ACF) Algorithm The Auto-Correlation Function algorithm provides peak to peak differential Time of Flight (TOF) measurements and it is the simplest solution to measure thickness with high accuracy. This algorithm requires that at least two back walls are present in the A-scan. If the material is too thick, attenuative or corrosive and only one back wall is present, use Zero Crossing Algorithm.

4.1.1. Detailed Procedure • Ensure Temperature Correction is Not Enabled (DAQ Tab) • Use a piece of known thickness of the same or similar material to determine the velocity of sound and

calibrate the instrument. Using a different material or the wrong thickness measurements will reduce the accuracy of the measurement.

• Always use Sensor-1 of the Band for calibration. • Select the calibration block of known thickness and place the probe gently on the calibration block. • Load the correct configuration file (e.g., Band-MC-SH-ACF-3-25mm) for the nominal thickness of the

material under test.

Step-‐1 • Ensure Temperature Correc4on is not enabled (DAQTab) • Place Sensor on the calibra4on block with known thickness value. • Load recommended Setup File (Band-‐MC-‐SH-‐ACF-‐3-‐25mm) to start new calibra4on.

Step-‐2

• Verify A-‐scan and Ensure G2 covers at least two back-‐walls. • Select Auto-‐Correla4on Algorithm for Thickness Measurements (G2 Menu) • Ensure Minimum Thickness is at least 1.5mm. • Ensure Frequency is 3MHz and Numbers Cycles "1".

Step-‐3

• press CAL and enable "Temperature Ref". Start pulsing and ensure thermocouple is reading correct temperature from the part or edit the value manually. • Enter Thickness Value (Depth1) and press ADD. • The device will start pulsing and will measure TOF and calculate Calibrated Velocity.

Step-‐4

• If in error, press CLEAR and again enter correct Thickness Value and press ADD. • Do not enter a second thickness value and press AD. This will invalidate the Calibra4on process. • Use can abort Calibra4on process at any stage by presing CANCEL "X". • Once done, Press OK and exit.



• Press “Gate” and select Gate2 (Flaw). • Setup Gate2 Start and Range to ensure that Gate2 width covers at least two back-walls from the

material. The gate values on the pre-loaded setup files are already preset for the material and thickness of the material, but small changes might be required.

• Press “Gate” and select Gate2 (Flaw). Ensure Gate2 Start (µs) and Range (µs) is correct according to the Setup File loaded for your application (Setup File Parameters).

• Select Gate 2 “Menu”. Ensure “Mode/Algo” is “Auto-correlation (ACF)” and “Min Thickness” is at least 1.5mm. The ACF algorithm will not work if min thickness is below 1.5mm. Select “Close” and exit this menu.

• Press “CAL” button. The Velocity Calibration menu will open at the bottom of the screen.

• Connect Thermocouple to the device. • Ensure that the device is calibrated to read correct Temperature values. (see: User Manual) • Enable “Temperature Ref” and start pulsing. The temperature field will read the temperature measured

with the thermo-couple. This field can also be edited manually in the absence of a thermocouple. • Press “Lock” to freeze the reference temperature value. • Navigate to “Depth 1” and edit the value for the thickness as per the calibration block using

alphanumeric pad and/or thumbwheel. • Press “√” button, and navigate to “Add” using thumbwheel and press “√” again. • The pulser will momentarily pulse and display the Depth and TOF (µs) values in the Velocity Calibration

menu. • The velocity in the material will be calculated automatically (sensor offset will not change). Both values

will be displayed in the CAL menu. • For calibration with ACF only one depth is necessary. Adding a second depth value will invalidate the

measurement. • Select “OK” and press “√” . • Exit to leave the calibration menu without updating the velocity/probe-offset. • Press the “Start/Stop” button to verify thickness measurements on the calibration block. Note: • Auto-correlation algorithm requires inserting a minimum thickness value. By default the system is set to

1.5mm. Increasing the number of cycles to improve penetration depth might require increasing this minimum thickness value.



4.2. Calibration Using Zero-Crossing Algorithm In curved geometries with un-parallel surfaces, highly attenuative materials or in corrosive environments normally only one back wall will be present as energy quickly scatters away from sensor. Zero-crossing algorithm is normally used when only one back-wall is present. This algorithm measures the total time from the start to a specific reference point on the waveform. In Zero-Crossing Algorithm a peak or the highest peak is selected in the waveform. The waveform following the peak when crosses x-axis (zero-crossing), the point is selected as reference for time of flight (TOF) measurements. To improve accuracy, a particular peak can also be selected by setting a threshold, where the first peak of the waveform crossing the threshold is selected and the zero-crossing following this peak becomes our reference for “TOF” measurements. For zero-crossing calibration it is required to insert at least two calibration points for velocity and sensor offset calculations.

Step-‐1 • Ensure/Input approximate Velocity of the Material (DAQTab) • Ensure Temperature Correc4on is not enabled • Place sensor on the smaller thickness step of the calibra4on block with known thickness and Load the recommended Setup File to start new calibra4on.

Step-‐2

• Verify A-‐scan and Ensure G2 covers at least one back-‐wall a_er mainbang. • Select Zero-‐Crossing Algorithm for Thickness Measurements (G2 Menu) • Ensure Frequency is 3MHz and Numbers Cycles "1". • Press CAL and enable "Temperature Ref". Start pulsing and ensure Thermocouple is reading correct temperature from the part or edit value manually.

Step-‐3 • Enter Thickness Value of the smaller thickness Step and press ADD. (Depth1) • The device will start pulsing and will measure Probe Offset (Probe Zero). • Now place probe on the larger thickness step of the calibra4on block. • Enter Thickness Value of the larger thickness Step and press ADD. (Depth2)

Step-‐4

• The device will now calculate new Probe Offset and Calibrated Velocity. The calibra4on process will complete. • If in error at any stage, press CLEAR and again enter correct Thicknes Value and press ADD. • Use can abort Calibra4on process at any stage by presing CANCEL "X". • Once done, Press OK and exit.



4.2.1. Detailed Procedure In case of thin materials where first back-wall is buried in the dead zone due to the initial transmitter pulse (mainbang), the available back-wall after the dead zone maybe selected for calibration. In such cases the calculated velocity in the material will not be correct and smaller thickness range (G2 range) must be selected for each calibration to avoid thickness measurement ambiguities. • Ensure Temperature Correction is Not Enabled (DAQ Tab). • A calibration Step Block is needed with at least two different thickness values. • During Calibration first measurement should be done on the thinner step which will determine the

probe-offset and second measurement on thicker step to calculate velocity. • Place the probe gently on the lower step of the calibration block. • Load the correct configuration file for the nominal thickness of the material under test. When in doubt or

material thickness is not known conventional piezo probes with delay line may be used to determine the actual thickness.

• Always start calibration with an approximate velocity of Shear Wave in the material. To adjust approximate velocity, navigate to the DAQ Tab and edit the velocity of the wave mode in the material to an approximate value.

• Press “Gate” and select Gate2 (Flaw). • Setup Gate2 Start and Range to ensure that Gate2 width covers the first available back-wall after initial

transmitter pulse (mainbang) for the range of thicknesses to be measured. • The gate values on the pre-loaded setup files are already preset for the material and thickness range,

but small changes might be required. • Press “Gate” and select Gate2 (Flaw). Ensure Gate2 Start (µs) and Range (µs) is correct according to

the Setup File loaded for your application. Refer to Setup File Parameters and adjust if needed. • Select Gate 2 “Menu”. Ensure “Mode/Algo” is “Zero-Crossing” and “First Peak after Threshold” is

disabled. • In most situations, using “Zero-Crossing” without enabling “First Peak after Threshold” is sufficient to

provide accurate readings. • Press “CAL” button. The Velocity Calibration menu will open at the bottom of the screen.

• Connect Thermocouple to the device. • Ensure that the device is calibrated to read correct Temperature values. (see: User Manual) • Enable “Temperature Ref” and start pulsing. The temperature field will read the temperature measured

with the thermo-couple. This field can also be edited manually in the absence of a thermocouple. • Press “Lock” to freeze the reference temperature value. • Navigate to “Depth 1” and edit the value for the thickness as per the calibration block using

alphanumeric pad and/or thumbwheel. • Press “√” button, navigate to “Add” using thumbwheel and press “√” again.



• The pulser will momentarily pulse and display the Depth and TOF (µs) values in the Velocity Calibration menu.

• Place sensor on the second step of the calibration block. • Navigate to “Depth 2” and edit the thickness value as per the second step of calibration block using

alphanumeric pad or thumbwheel. • Press “√” button, navigate to “Add” using thumbwheel and press “√” again. • The pulser will momentarily pulse and display the Depth and TOF (µs) values in the Velocity Calibration

menu. • The system will automatically calculate the Probe Offset and Calibrated velocity in the material • Do not “Add” a thickness value twice or it will invalidate the calibration. • Select “OK” and press “√” . • Exit to leave the calibration menu without updating the velocity/probe-offset. • Press the “Start/Stop” button to verify thickness measurements on the calibration block. Note: 1. Whenever 2nd back-wall is used for calibration with zero-crossing algorithm, the calculated calibrated velocity will be approximately half of the true velocity in the material. 2. If 3rd back-wall is used for calibration with zero-crossing algorithm, the calculated calibrated velocity will be approximately one third of the true velocity in the material.



4.3. Compensating Velocity for High Temperature Measurements

Changes in temperature affect the velocity of sound, which need to be taken into account for accurate thickness: • The “Temperature correction” can be performed on BAND tab by enabling “Temp Correction”. • Once enabled and device is pulsing, the temperature measured by the thermocouple will be displayed

in real time. This field can also be edited manually. • Enough time must be given to the thermocouple on hot part to reach a stable readout measuring the

temperature value correctly. • Press “Lock” to lock the temperature value read by thermocouple. • The corrected velocity will also be locked and displayed in Temperature Compensated Velocity field. • Apply transducer to the hot part and perform inspection. This inspection will be performed using the

temperature corrected velocity. • If the new measured temperature is not locked or “Lock” is not pressed, the measured temperature

value will continuously update the velocity value and therefore the temperature reading will also be unstable or keep changing.

Note: • Do not enable “Temp correction” if you are not interested in temperature corrections. • If temperature correction is used, perform the calibration enabling the “Temperature Ref” field. The

Calibration procedure explained above includes reference temperature during calibration. • Only high temperature transducers supplied by Innerspec Technologies should be used for high

temperature measurements. (Refer to the product Catalog). • To avoid damage to the sensors, keep the sensor within its rating and specifications.



4.4. Manual Data Recording

• Select “SAVE”, the button will be highlighted with RED color with options “With A-scan” or “Without A-scan”.

• Ensure the recording media (RAM Drive, Internal Flash Drive, USB Memory Stick or SD Card) is selected properly from SYSTEM Tab. (Refer Manual)

• Press “SAVE” and watch for the MUX switching from one sensor to the other till complete data is acquired from all selected sensors.

• The recorded data file will appear in the band data directory along with a “.csv” file containing A-scan data from the last sensor.

• In normal operation, the band can be operated by pressing “START” without saving any data. 4.4.1. Reviewing Record or Data Files

• Each BAND record or data file can be loaded back on the Band display panel for review and each of the eight A-scan data can be reviewed by selecting the corresponding sensor in the MUX widget.

• Press OPEN and select the recording media and Band Data Directory. Now select the file and press “OK” to load the data back on the Band display panel. The top left hand corner will indicate the name of the file loaded for display.

• To resume normal operation, re-load the setup file you were using earlier or load a setup file needed for your application.

• The A-scan data from all eight sensors for each record can also be exported in a “.csv” excel file by opening the data file first in the “Power Box® H Viewer software” (Win32 application) and then saving it back after giving a name on your desktop or laptop.



4.5. Automatic Data Recording

• The data can be recorded automatically by enabling “Data Logging” and selecting a time interval. The system will automatically trigger after the selected time interval and acquire/save data in the band directory.

4.6. Naming Data Files The data file names can be composed of selecting certain optional information Tags with Band #, Date and Index are automatically added by default. The naming convention is selected to identify the data files easily and to sort the data based on certain field while viewing in Trend View panel.

• Band # – Band name is always added in the beginning of the data file name. • Site – Optional information about the location of Band. • Tag-1 – Any additional optional Information. • Tag-2 – Any additional optional Information. • Date – It is always added with the record by default. • Time – Optional Time information can also be added with file name. • Index – Index number is also added automatically with the record name. • Start Record Index at – Provides ability to select the starting index number for the data file. The

index numbers of subsequent data files will be incremented automatically.



4.7. Generating Reports Users can generate “Reports” after capturing data from all sensors by pressing RPT button on keypad. Three types of reports can be generated based on three types of display possible. The report can be generated for the current data from all sensors using “Mux Widget+A-scan” display or “Mux Widget+Bars” display or “Mux Widget+Trend View” options. The report only provides a snapshot of a single event during the thickness monitoring process for the purpose of reference/record. 4.7.1. Reports with A-Scan display

• The report will display the current A-Scan for the selected Sensor in the Mux Widget. • The data from the cursors will also be included in the report. The A-scan display area can be

selected by pressing SEL key and cursors can also be activated using CUR key for doing any possible measurements.

• The readouts from all sensors will be available in a tabulated form. • All information about Transmitter and Receiver (TX/RX) parameters will be included in the report. • The information about DAQ parameters will also be included. • The data about the device will also be included in the report. • The generated reports can be opened on the device for readout only. • The report can also be opened on the PowerBox® Viewer software and can be converted into

PDF for print outs and distributions. • The PDF file is automatically saved in the same directory.

Sample Report with A-scan



4.7.2. Reports with Bars display

• The report will display the Bar Chart for all Sensors in the Band. • The readouts from all sensors will be available in a tabulated form. • All information about Transmitter and Receiver (TX/RX) parameters will be included in the report. • The information about DAQ parameters will also be included. • The data about the device will also be included in the report. • The generated reports can be opened on the device for readout only. • The report can also be opened on the PowerBox® Viewer software and can be converted into


Sample Report with Bar Chart



4.7.3. Reports with Trend View

• The report will display the Trend View consisting of all selected records. • The readouts from all sensors will be available in a tabulated form for the current cursor location. • The Trend View area can be selected by pressing SEL key and cursors can also be activated using

CUR key to move horizontally across the display. • All information about Transmitter and Receiver (TX/RX) parameters will be included in the report. • The information about DAQ parameters will also be included. • The data about the device will also be included in the report. • The generated reports can be opened on the device for readout only. • The report can also be opened on the PowerBox® Viewer software and can be converted into


As-TB-A14 Band Sensor Applications

Documents

Transcript of As-TB-A14 Band Sensor Applications