Ultra-stable OEM pressure sensor

Citation

(2001), "Ultra-stable OEM pressure sensor", Sensor Review, Vol. 21 No. 3. https://doi.org/10.1108/sr.2001.08721cad.011

Ultra-stable OEM pressure sensor

Ultra-stable OEM pressure sensor

Keyword: Pressure sensors

Measurement Specialities' ICSensors Division has released a new piezoresistive pressure "cell", for pressure sensing from 1,000psi to 5,000psi in absolute or sealed gauge versions (Plate 11). A stainless steel diaphragm transmits the external pressure to a micro-machined silicon die via the sealed-in silicon fluid. The constant current fed bridge in the silicon-die provides a nominal output of 100mV via temperature-compensating circuits.

Plate 11 Model 87 ultra-stable OEM pressure sensor

±0.25 per cent interchangeability between the spans of different sensors is provided by means of the built-in gain-set resistor, as is ±0.25 per cent pressure linearity with a maximum temperature error of ±1.0 per cent all commg as standard. Thus these new discrete pressure sensors provide the electronics world with an enhanced solid state high performance device of small dimensions and intrinsic reliability.

A number of different "fittings" are available, e.g. a threaded process fitting with ¼in NPT or ¼G and hex-mounting, or the more simple, "back end" option. For the do-it-yourself OEM there is an ingenious new idea where only the basic sensing element being provided as a "front-end" by itself makes easy the manufacture of more sophisticated transducers by the user.

Electrical terminations are by means of cable, connector-on-ribbon, or solder-pins.

For more information, please contact: Henry Schuster, EuroSensor, 20-24 Kirby Street, London EC1N 8RW, UK. Tel: +44 (0)207 405 6060; Fax: +44 (0)207 405 2040.