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Low-power shock and vibration sensors and methods of making sensors

  • US 20080168840A1
  • Filed: 01/12/2007
  • Published: 07/17/2008
  • Est. Priority Date: 01/12/2007
  • Status: Active Grant
First Claim
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1. A low-power sensor-for monitoring exposure of an object to a stimulus, the sensor comprising:

  • a proof mass;

    at least one first piezoelectric device operable to generate a current when the proof mass imparts a force on the first piezoelectric device in response to the proof mass undergoing a transient acceleration when the object is subjected to a stimulus; and

    a first electronic circuit connected to the first piezoelectric device, wherein the first electronic circuit is at least partially controlled in response to the current generated from the first piezoelectric device due to the stimulus.

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