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Method of forming a resonance transducer

  • US 6,772,490 B2
  • Filed: 08/03/2001
  • Issued: 08/10/2004
  • Est. Priority Date: 07/23/1999
  • Status: Expired due to Term
First Claim
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1. A method of forming a resonance transducer, said method comprising:

  • providing a piezoelectric body having a first acoustic impedance indicative of material characteristics of said piezoelectric body;

    providing a propagation medium having a second acoustic impedance; and

    coupling a matching layer between said piezoelectric body and said propagation medium, wherein said piezoelectric body vibrating at the resonance frequency has a resonance impedance less than said second acoustic impedance associated with said propagation medium, and wherein said matching layer has a third acoustic impedance less than said second acoustic impedance associated with said propagation medium for providing a high output or high sensitivity signal to said medium when operated at the resonance frequency.

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