Accession Number : AD0748357

Title :   Experimental Determination of Piezoelectric Parameters.

Descriptive Note : Master's thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO SCHOOL OF ENGINEERING

Personal Author(s) : Disch,Glenn C.

Report Date : JUN 1972

Pagination or Media Count : 74

Abstract : A theory was developed whereby the elastic compliance, piezoelectric constant and dielectric constant could all be determined by mechanically driving a transversely polarized ceramic bar. 3-port analysis was applied to longitudinal vibrations in a transversely polarized ceramic bar. Furthermore, losses were accounted for by assuming complex dissipation. Experimentation was conducted according to the developed theory using standard 3-port techniques. The zero velocity boundary condition was approximated by using quarter-wavelength glass rods. Barium titanate and lead zirconate titanate were investigated for the two to four kilohertz audio frequency band and for driving levels ranging from ten to fifty g's. (Author)

Descriptors :   (*CERAMIC MATERIALS, PIEZOELECTRIC EFFECT), (*PIEZOELECTRIC TRANSDUCERS, MECHANICAL IMPEDANCE), BARIUM COMPOUNDS, LEAD COMPOUNDS, ZIRCONIUM COMPOUNDS, TITANATES, DIELECTRIC PROPERTIES, EQUATIONS OF STATE, BOUNDARY VALUE PROBLEMS, MATRICES(MATHEMATICS), VIBRATION, THESES

Subject Categories : Ceramics, Refractories and Glass
      Acoustic Detection and Detectors
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE