Accession Number : ADD006444

Title :   Piezoelectric Polymer Membrane Stress Gage.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : DeReggi ,Aime S ; Edelman,Seymour

Report Date : 28 Aug 1979

Pagination or Media Count : 5

Abstract : Apparatus and method for detecting pressure variations because of acoustic waves by modulation a preset tensile stress in a stretched thin sheet of a piezoelectric polymer. The modulation is provided by the changing stress caused by an impinging acoustic signal or the like. The piezoelectric polymer sheet under a preset tension acts effectively as a membrane resulting in a high output combined with a high resonance frequency and a wide operating frequency range. (Author)

Descriptors :   *Patents, *Piezoelectric materials, *Piezoelectric gages, *Polymers, *Membranes, Acoustic waves, Range(Distance), Resonant frequency, Output, Stresses, Frequency modulation, Variable pressure

Subject Categories : Electrical and Electronic Equipment
      Ceramics, Refractories and Glass
      Test Facilities, Equipment and Methods
      Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE