Low-power shock detector for measuring intermittent shock events

Details Low-power shock detector for measuring intermittent shock events Low-power shock detector for measuring intermittent shock events

1994-09-06

1996-12-17

Williams, Hezron E.

Measuring and testing

Vibration

Sensing apparatus

73510, 7351435, 340669, 340683, 340436, 340690, 340566, 340429, 331 64, G01P 1508

Patent

active

055855660

ABSTRACT:
A shock detector for measuring intermittent shock events comprises a mechanical delay line to supply delayed output motion in response to input motion along an input axis. A transducer converts the delayed output motion to an electrical signal representative of the delayed output motion. The transducer is generally in a respective inactive state to reduce the power consumption of the shock detector. A relatively low power motion sensor, such as low power accelerometer or tilt actuated switch, is employed for switching the transducer to a respective active state in response to the input motion thereby allowing the shock detector to measure any intermittent shock event regardless of the generally inactive state of the transducer.

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