Analysis
Rugged Accelerometers for Downhole Measurements
Inertial Aerosystems have announced a range of rugged, high temperature accelerometers designed primarily for downhole measurement while drilling (MWD) in the oil and gas industries. Designated the QAT160/T185 range, these units, produced by US based Honeywell in Redmond, WA, consist of two models. Both use the proven Q-Flex etched quartz proof flexure seismic system, modified for harsh environments.
The The QAT160 has an operating temperature of -40 to 160ºC (175ºC intermittent), while the QAT185 has an operating temperature of 140 to 185ºC (200ºC intermittent). Both have a shock resistance of >1000g and a vibration tolerance of 30g peak sine 50/800Hz. Weighing only 55 grams with a diameter of 25.4mm and a length of 18.5mm, they are ideal where space and weight are at a premium.
These high quality products have high resistance to vibration and shock and have built in calibration and various mounting options are available.
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