Pressure transducers avoid overspecification
A
Measurement Specialties product story
Edited by the Engineeringtalk editorial team
Nov 17, 2006
Schaevitz brand pressure transducers handle the harshest environmental conditions and provide maximum resolution at the required measured pressure range.
Measurement Specialties manufactures Schaevitz brand pressure transducers for the harshest environmental conditions which provide maximum resolution at the required measured pressure range.
These transmitters are built using rugged bonded foil strain gauge (BFSG) technology, time-tested for industrial and military applications.
The key to this capability is a unique pressure overload protection for the diaphragm called the overtravel stop (OTS).
OTS enables the sensing element to handle a minimum of five-times full scale over-range pressure spikes without damage or drift.
Unlike competing technologies which use increased amplifier gain at the cost of lower resolution, increased noise, and higher signal-to-noise ratios, Schaevitz BFSG pressure transmitters allow users to order based on the target range without fear of damage due to spikes.
For example, instead of ordering a 345bar device to measure pressure in the 34-69bar range with spikes of 345-690bar, a user could specify a Schaevitz BFSG transducer rated to 69bar.
The Schaevitz BFSG pressure transmitters offer high accuracy and long-term stability without degradation or failure.
This unique design also affords thermal isolation to high temperature transients, shock loads and vibration, allowing bonded foil strain gauges to be used in extreme military, aerospace, and industrial applications.
Schaevitz bonded foil strain gauges are available in pressure ranges from 0-5bar to 690bar, with accuracy to better than +/-0.08% full rated output.
Operating temperature range is from -50 to +120C, compensated to -20 to +85C.
All materials are compatible with 17-4 pH stainless steel.
Devices are CE certified; EMI/RFI shielding is standard.
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