Portable Transducer Display Unit
2
new products Edited by TED MILLER Portable Transducer Display Unit Currently being used to measure torque in vehicle steering systems, this instrument is designed to work with and d.c. transducer. Measuring 12 x 10 x 6ins. the instrument is simple and convenient to use. Stabilised battery power supplies are included for the amplifier and circuitry, with a variable supply (3-9V) for the transducers. Output display is a robust, centre- zero, taut-band meter. The input amplifier can be unplugged and used externally if required, its power supplies being brought out on the input socket. The output of the amplifier goes through a range selection network to the meter and to an output monitor socket. The three ranges can be individually adjusted and so can be set to read real engineering units. A switched filter is provided for meter damping. The alternative input arrangements provide input sensitivities down to 250/0/250pV. Zero setting is by means of a 10-turn potentiometer. SANDS-WHITELEY RESEARCH & DEVELOPMENT, 24 TILEHOUSE STREET, HITCHIN, HERTS. PHONE : 50290. Price is from €94 and delivery 416 weeks. New Pyroelectric Detector The Barnes Engineering Co., who specialise in advanced infra-red equipment, have just announced a newly developed thermal infra-red detector which requires no bias, no cooling and has uniform sen- sitivity over a wide infra-red wavelength region. As with other Barnes equipment it will be distributed in the U.K. by B. & K. Instruments Ltd. Barnes claim that this new pyroelectric detector has a useful noise equivalent power from near d.c. to beyond 2000Hz, and is significantly faster, more sensitive and more convenient to use than any previously available long-wavelength IR detectors. B. &. K. INSTRUMENTS LTD., 59 UNIONSTREET, LONDON. S.E.I. PHONE: HOP 4567. Digital Event Recorder The WX-504 Recorder is a self-contained 24 channel digital recording system, with an 8in chart width, for monitoring events on industrial machinery and plant. The unit provides up to 24 channels of digital record complete with date and time in hours, minutes and seconds, of events. Each channel is identified by a different letter or symbol. The recorder looks at all points continuously; when an alarm or an event occurs, the letter corres- ponding to that channel is printed, while simul- taneously the date and time is printed. A memory circuit ensures the retention of new information received by the recorder during printout. Different events occurring on different channels at the same moment, are printed simultaneously on the same line. The chart is fed and printed only when an event occurs and being of the multifold type, allows easy access to any part of the record. From the record obtained it is possible to read the actual time of any event and to see the sequence of events at a glance. ENVIRONMENTAL EQUIPMENTS LTD., DENTON ROAD, WOKINGHAM, BERKS. PHONE : WEST FORREST 4922. Data Transfer Unit Solartron’s Data Transfer Unit (D.T.U.) converts any digital voltmeter, digital counter or other digital data source into a data logger. The modular system may be extended up to 20 input channels and can feed two separate output devices simultaneously, e.g. a punch tape and a strip printer. A range of scanning modes can be used and scans are initiated by switch or by clock module at set intervals from I s to 2 hr. The maximum scanning rate is about 150 samples per second or 300 with two digital instruments. If information is taken from a single analogue source, by-passing the scanner with its diaphragm relays, the rate is approximately 6000 per second, although for most applications the peripherals will govern the speed. Owners of a digital voltmeter will find the D.T.U. an economic means of entering the data logging field. Almost every DVM is compatible with the D.T.U. and if there is sufficient demand, Solartron intend to produce compatible modules also for the special type Price less than f500, output device not included. SOLARTRON ELECTRONIC GROUP LTD., FARNBOROUGH, HANTS. PHONE: FARNBOROUGH 44433. 1-2-2-4 DVM. New Improved Oscilloscope from S.E.L. X5 gain switch over and above the basic sensitivity of 50 mV/cm at 20mHz is one of a number of improve- 180 “Strain”, July, 1969
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Transcript of Portable Transducer Display Unit
new products Edited by TED MILLER
Portable Transducer Display Unit Currently being used to measure torque in vehicle
steering systems, this instrument is designed to work with and d.c. transducer. Measuring 12 x 10 x 6ins. the instrument is simple and convenient to use. Stabilised battery power supplies are included for the amplifier and circuitry, with a variable supply (3-9V) for the transducers. Output display is a robust, centre- zero, taut-band meter.
The input amplifier can be unplugged and used externally if required, its power supplies being brought out on the input socket. The output of the amplifier goes through a range selection network to the meter and to an output monitor socket. The three ranges can be individually adjusted and so can be set to read real engineering units.
A switched filter is provided for meter damping. The alternative input arrangements provide input sensitivities down to 250/0/250pV. Zero setting is by means of a 10-turn potentiometer.
SANDS-WHITELEY RESEARCH & DEVELOPMENT, 24 TILEHOUSE STREET, HITCHIN, HERTS. PHONE : 50290.
Price is from €94 and delivery 416 weeks.
New Pyroel ectric Detector The Barnes Engineering Co., who specialise in
advanced infra-red equipment, have just announced a newly developed thermal infra-red detector which requires no bias, no cooling and has uniform sen- sitivity over a wide infra-red wavelength region. As with other Barnes equipment it will be distributed in the U.K. by B. & K. Instruments Ltd.
Barnes claim that this new pyroelectric detector has a useful noise equivalent power from near d.c. to beyond 2000Hz, and is significantly faster, more sensitive and more convenient to use than any previously available long-wavelength IR detectors.
B. &. K. INSTRUMENTS LTD., 59 UNION STREET, LONDON. S.E.I. PHONE: HOP 4567.
Digital Event Recorder The WX-504 Recorder is a self-contained 24
channel digital recording system, with an 8in chart width, for monitoring events on industrial machinery and plant. The unit provides up to 24 channels of
digital record complete with date and time in hours, minutes and seconds, of events.
Each channel is identified by a different letter or symbol. The recorder looks at all points continuously; when an alarm or an event occurs, the letter corres- ponding to that channel is printed, while simul- taneously the date and time is printed. A memory circuit ensures the retention of new information received by the recorder during printout. Different events occurring on different channels at the same moment, are printed simultaneously on the same line.
The chart is fed and printed only when an event occurs and being of the multifold type, allows easy access to any part of the record. From the record obtained it is possible to read the actual time of any event and to see the sequence of events at a glance.
ENVIRONMENTAL EQUIPMENTS LTD., DENTON ROAD, WOKINGHAM, BERKS. PHONE : WEST FORREST 4922.
Data Transfer Unit Solartron’s Data Transfer Unit (D.T.U.) converts
any digital voltmeter, digital counter or other digital data source into a data logger. The modular system may be extended up to 20 input channels and can feed two separate output devices simultaneously, e.g. a punch tape and a strip printer.
A range of scanning modes can be used and scans are initiated by switch or by clock module at set intervals from I s to 2 hr. The maximum scanning rate is about 150 samples per second or 300 with two digital instruments. If information is taken from a single analogue source, by-passing the scanner with its diaphragm relays, the rate is approximately 6000 per second, although for most applications the peripherals will govern the speed.
Owners of a digital voltmeter will find the D.T.U. an economic means of entering the data logging field. Almost every DVM is compatible with the D.T.U. and if there is sufficient demand, Solartron intend to produce compatible modules also for the special type
Price less than f500, output device not included.
SOLARTRON ELECTRONIC GROUP LTD., FARNBOROUGH, HANTS. PHONE: FARNBOROUGH 44433.
1-2-2-4 DVM.
New Improved Oscilloscope from S.E.L. X5 gain switch over and above the basic sensitivity
of 50 mV/cm at 20mHz is one of a number of improve-
180 “Strain”, July, 1969
ments claimed for a new portable oscilloscope developed by S.E. Laboratories (Engineering) Ltd., Type 1OlHS.
The X5 gain switch gives 5mV/cm at the 4MHz band-width. The lOlHS is further improved by an up- graded battery life of four hours.
S.E. LABORATORIES (ENGINEERING) LTD., NORTH FELTHAM TRADING ESTATE, FELTHAM, MIDDLESEX. PHONE: 01 890 1 166.
Low-Voltage Insulation Tester A new low-voltage battery powered insulation tester
has been introduced by Strainstall Ltd. Primarily designed for strain gauge users, the tester (type 230) is also suitable for the non-destructive testing of a variety of assemblies, particularly those embodying semi-conductor components.
Two linear ranges are provided, 0-30 Megohm and 0-100 Megofim, and the test voltage is 3 volt d.c. The tester is in a stove-enamelled case, 5 by 33 by 3in. overall, with carrying handle. Price is €23. Full details are obtainable from:
WIGHT. PHONE: COWES 2219/2360. STRAINSTALL LTD., 9 0 ~ HIGH STREET, COWES, ISLE OF
New Digital Measuring System This new Farnell system is modular and consists of
a main frame/display unit with an access port in the front. This accepts various “plug-in” modules each one of which permits accurate measurement of a specific electrical parameter. The modules presently available enable the system to become a digital volt- meter, a lMHz counter /timer or an ohmmeter and other plug-in modules will be announced periodically.
WETHERBY, LS22 4DH. PHONE: 0937 3451/6. FARNELL INSTRUMENTS LTD., SANDBECK WAY,
Eight-Speed Tape Deck The TD 10 is the latest tape deck from S.E. Labora-
tories and supersedes the TD 5 tape transport. Precise tape handling is achieved by a phase-locked capstan servo and sensitive reel servos. Main features are its lO+in. reel capability using 1, + or tin. tape, its 8 tape speeds (the TD 10 is fully bi-directional) and its minimal size.
S.E. DATA, S.E. LABORATORIES (ENGINEERING) LTD., NORTH FELTHAM TRADING ESTATE, FELTHAM, MIDD- LESEX. P!!ONE: 01 387 0771.
Polariscope. Price Increase Norwood Instruments, manufacturers of the Haines
6$n. diffused-light polariscope advise a 5 % increase on the prices quoted in the January 1969 issue of Strain.
NR. HUDDERSFIELD. PHONE: HUDDERSFIELD 61318. NORWOOD INSTRUMENTS LTD., NEW MILL RD., HONLEY
Multi-Channel Carrier Frequency System This multi-channel version of the existing Vibro-
Meter equipment range is suitable for use with wire and foil strain gauges, rotary transformers and trans- ducers. It has long term stability and it is capable of driving U.V. galvanometer recorders etc.
Each module has British edgewise meters, one per channel, for bridge balancing, indication and monitor- ing. Single channel version is produced by simply attaching a plug-on power unit.
VIBRO-METER S A, HALETOP CIVIC CENTRE, WYTHEN- SHAW, MANCHESTER 22. PHONE : MERCURY 4740.
High Temperature Pressure Transducers Type XT33 and RV22 pressure transducers are now
available from Coutant in high-temperature form. Both HT models can be operated continuously at 200°C and cover a large number of pressure ranges from 15 psi to 50,000 psi.
Prices range from €70 to €100 depending on range and facilities.
COUTANT TRANSDUCERS, 47 MILFORD ROAD, READING RGl 8LN. PHONE: READING 40166.
Li te rat u re Received “Connector Pictorial Charts” published by Suhner Electronics Ltd.
This is of interest to users of radio frequency con- nectors for commercial and military electronic applications and contains 37 individual connector pictorial charts.
ROAD, LONDON, W.C.1. SUHNER ELECTRONICS LTD., 172/176 KINGS CROSS
PHONE: 01 278 2941/6.
“Strain”, July, 1969 181
