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Accelerometers for Pyroshock Applications

PCB has several new shock accelerometer designs that are contributing to the improved measurement of both high-level (e.g., gun launch and penetration events) and pyrotechnic shock. Pyrotechnic shock, often called pyroshock, is a measurement challenge due to its associated high frequency content, which typically excites the resonant frequency of any measuring accelerometer. As a result, the accelerometer can easily be driven nonlinear due to this resonance excitation. In some situations, the frequency environments associated with severe mechanical shock may be so expansive, the acceleration levels so high, or the off-axis inputs so severe that successful measurements simply cannot be obtained. 

There is no single accelerometer technology that is optimum for every measurement application. A brief summary of those technologies available from PCB is provided below. Please browse the various accelerometer designs based on these technologies on the subsequent web pages.

Piezoelectric ICP® accelerometers afford a very high signal output (+/- 5 volts full scale) and the ease of two-wire electrical connectivity.
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Piezoelectric ICP® Shock ››

Piezoresistive MEMS shock accelerometers have low power consumption while still providing +/- 200 mV full scale output at acceleration levels greater than 50 kg.
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Piezoresistive MEMS Shock ››