Wireless sensor reader

Wireless sensor reader

  • CN 102,422,330 B
  • Filed: 03/19/2010
  • Issued: 12/07/2016
  • Est. Priority Date: 04/07/2009
  • Status: Active Grant
First Claim
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1. , for obtaining a system for measured value from remote location, described system includes:

  • Wireless senser, for proportionally changing described with at least one sensor parameterThe resonant frequency of wireless senser;

    AndReader, for sending multiple driving pulses of fixed frequency to described wirelessSensor, this fixed frequency is predetermined fixed frequency, in response to described driving pulseReceive at least one signal from described wireless senser, sample and keep the institute receivedState signal, and to from the described signal that same described wireless senser receivesAt least two is averaged,Wherein, described wireless senser transmission function there is sufficiently wide bandwidth so thatObtain the transmission function intersection point at both of described driving pulse and described wireless senserThe amplitude of the product at place is more than or equal to described reader in whole operating frequency rangeDetection threshold value.

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