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RF Backscatter Sensor for Measuring Moisture and Other Biological Data

  • US 20140358099A1
  • Filed: 05/30/2014
  • Published: 12/04/2014
  • Est. Priority Date: 05/30/2013
  • Status: Abandoned Application
First Claim
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1. A moisture sensor unit for sending moisture in an environment, comprising:

  • (a) a passive moisture sensor; and

    (b) two passive RFID tags that are spaced apart from each other and disposed on opposite sides of the moisture sensor, each of the RFID tags electrically coupled to the moisture sensor and each of the RFID tags including a circuit that determines an amount of moisture that is associated with the moisture sensor, each of the RFID tags configured to respond to a first radio frequency signal with a second radio frequency signal that includes information about the amount of moisture.

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