Series 3991/3501 MEMS shock accelerometers are miniature, high-amplitude, dc response acceleration sensors, capable of measuring long duration transient motion, as well as responding to and surviving extremely fast rise times typical of high G (> 20,000 G) shock events.
The air-damped acceleration sensing element is micro-machined from silicon. Measuring just 2.5 x 1.7 x 0.9 mm, the sensor incorporates a seismic mass, protective over range stops, and a full-active piezoresistive Wheatstone bridge. The slight air-damping reduces the resonant amplification which increases measurement accuracy. The over range stops give the sensor exceptional survivability.
PCB Piezotronics, Inc.
Filed Under: Sensors (position + other), Shocks + vibration control • gas springs, Test + measurement • test equipment