Accession Number : ADD007719

Title :   Rotation of Characteristic Vectors with Piezoelectric Coupling.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Epstein,Seymour

Report Date : 25 Sep 1979

Pagination or Media Count : 10

Abstract : Acoustic ultrasonic waves are launched in a block of single-crystal material, such as alpha-quartz, by means of a transducer fastened to one end of the block. The waves are steered by electrically altering the properties of the crystal between the piezoelectrically unstiffened and stiffened excitation modes. (Author)

Descriptors :   *Patents, *Piezoelectric crystals, *Beam steering, Ultrasonics, Acoustic beams, Electric fields, Anisotropy, Stiffness, Shear properties

Subject Categories : Acoustics
      Crystallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE