×

Ultrasonic transducer employing piezoelectric polymeric material

  • US 4,577,132 A
  • Filed: 10/19/1984
  • Issued: 03/18/1986
  • Est. Priority Date: 07/05/1983
  • Status: Expired due to Fees
First Claim
Patent Images

1. An ultrasonic transducer having a piezoelectric vibrating element that vibrates in a thickness extensional mode, comprising a sheet of piezoelectric material consisting essentially of a copolymer vinylidene fluoride and ethylene trifluoride, having the value of the thickness extensional electromechanical coupling factor (Kt) of at least 0.05.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×