Accelerometer Has Enhanced Temperature Capability

Inertial Aerosystems has introduced a small diameter, shock-resistant accelerometer with enhanced temperature capability. It has been designed primarily for down-hole measurement while drilling (MWD) applications in the gas and oil industries and also wireline environments that require a small form factor such as the new generation of directional and horizontal drilling tools. 

Designated the Mini-Q accelerometer, it is manufactured by US-based Honeywell and uses the low-noise, Q-Flex-etched quartz-proof flexure seismic system, modified for harsh environments. Operating temperature is now -40 to 185C, with intermittent capability of 200C. The shock operating/non-operating performance is -40 to 85C at 1,000g, 0.5ms and 85 to 185C at 400g, 0.5ms. Input voltage is +/-12V DC to +/-18V DC with input current (quiescent) 8mA max, 6mA typical. The device can be scaled to any full-scale range to 30g, has an analogue output with an internal temperature sensor, and fits into a 25.4mm tool diameter.

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