Pressure Sensors Feature High Accuracy & Measurement Stability

GE’s Trench Etched Resonant Pressure (TERPS) technology is now available in a range of new pressure sensors from GE Energy, Measurement & Control Solutions. The RPS 8000 and the DPS 8000 resonant silicon pressure sensors offer accuracy and stability greater by a factor of 10 over existing piezoresistive pressure sensors with extended pressure range capability (up to 70 bar) and temperature range (-40 C to 85 C). The sensors feature physical isolation from the pressure medium through a metallic isolation diaphragm and an oil-filled chamber that enables a robust packaging suitable for harsh environments. The RPS 8000 and the DPS 8000 sensors differ only in their respective outputs. The DPS 8000 incorporates an integral microprocessor and RS485/RS232 outputs to provide direct digital output. The RPS 8000 delivers a TTL frequency output and a mV temperature measurement from an integral temperature diode. These can be combined in a customer’s own digital equipment to provide a pressure reading. The RPS 8000 is a good fit for OEMs and systems developers who wish to incorporate high accuracy, stable pressure measurement. A selection of electrical and pressure connectors is available to meet specific requirements. Typical applications range from aerospace to sub-sea and from process engineering and metrology to industrial instrumentation.

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