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Transducer for acoustic communications

  • US 9,860,646 B2
  • Filed: 10/17/2012
  • Issued: 01/02/2018
  • Est. Priority Date: 10/18/2011
  • Status: Expired due to Fees
First Claim
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1. A transducer for acoustic communications, the transducer comprising:

  • a signal processor configured to implement a communications scheme at and around a centre frequency of at least 1 MHz;

    a piezoelectric element for activation in accord with the communications scheme;

    an electrode electrically connected to the signal processor, and having a first surface that runs along and is attached to a second surface of the piezoelectric element; and

    a substrate, having the piezoelectric element mounted on the substrate;

    wherein a length of the first surface of the electrode that runs along the second surface of the piezoelectric element is approximately equal to the acoustic wavelength of an acoustic wave in the substrate at the centre frequency, the transducer being adapted for acoustic communications through a series arrangement of fluid and solid media.

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