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Energy harvester and wireless sensor device having energy harvester

  • US 10,046,779 B2
  • Filed: 02/13/2017
  • Issued: 08/14/2018
  • Est. Priority Date: 04/30/2013
  • Status: Active Grant
First Claim
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1. A wireless sensor device comprising:

  • an energy harvester configured to convert vibration generated from a broadband vibration source into electricity;

    an elastic member arranged to receive the vibration and connected to the energy harvester; and

    a communication unit fixed by the elastic member, supplied with the converted electricity from the energy harvester, and configured to transmit sensing information obtained by sensing a measurement target,wherein the elastic member operates as a mechanical filter configured to limit a frequency range and an acceleration magnitude of the vibration to be transferred to the communication unit for stabilizing the performance of the communication unit, and the communication unit is arranged to receive vibration passing through the elastic member.

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