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Telemetric sensing using micromachined ultrasonic transducer

  • US 8,767,514 B2
  • Filed: 12/02/2008
  • Issued: 07/01/2014
  • Est. Priority Date: 12/03/2007
  • Status: Active Grant
First Claim
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1. A capacitive micromachined transducer (cMUT) system comprising:

  • a cMUT operative in a reception mode (RX) to convert an external energy applied on the cMUT to an output signal;

    an AC signal source on a first side of the cMUT for generating a carrier signal that passes across an electrode gap of the cMUT to a second side of the cMUT, so that a carrier frequency of the carrier signal is modulated with the output signal, that is output by the cMUT, to become a modulated signal carrying the output signal; and

    an antenna on the second side of the cMUT to wirelessly transmit the modulated signal carrying the output signal.

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