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Piezoelectric actuator sensitive to reducing gas

  • US 5,637,949 A
  • Filed: 10/30/1995
  • Issued: 06/10/1997
  • Est. Priority Date: 10/31/1994
  • Status: Expired due to Fees
First Claim
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1. A piezoelectric actuator subjected to bending displacement by sensing a reducing gas, said piezoelectric actuator being composed of two regions bonded to each other, one of said regions being made of a material whose electric resistance varies by sensing a reducing gas, and the other of said regions being made of a piezoelectric material which is not sensitive to a reducing gas, an electrode being formed on an outer surface of each region to apply an electric field to said piezoelectric material.

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