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Sensor, sensor system, and method for remotely sensing a variable

  • US 6,897,775 B2
  • Filed: 04/05/2001
  • Issued: 05/24/2005
  • Est. Priority Date: 05/23/2000
  • Status: Expired due to Fees
First Claim
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1. A sensor for remote detection of a measurable variable, having a first resonator (5), which has a resonant frequency that is variable under the influence of the measurable variable, having an antenna (1) for sending and receiving a modulated high-frequency signal and a modulator (2) for coupling the first resonator (5) to the antenna (1), characterized in that it includes a second resonator (3), which is excitable by a carrier frequency of the modulated high-frequency signal.

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