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Acoustic resonator for measuring force

  • US 5,813,280 A
  • Filed: 09/04/1996
  • Issued: 09/29/1998
  • Est. Priority Date: 07/02/1996
  • Status: Expired due to Fees
First Claim
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1. An acoustic resonator for measuring force comprising:

  • a cylindrical body having;

    a central section with a first radius (a) comprising a material having a plane-wave shear velocity ν

    a ; and

    two distal sections with a second radius (b) comprising a material having a plane-wave shear velocity ν

    b wherein the ratio a/ν

    a differs from the ratio b/ν

    b by an amount selected to trap some acoustic resonant modes in the central section.

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