Accession Number : ADD001283

Title :   Piezoelectric Transducer Having Good Sensitivity Over a Wide Range of Temperature and Pressure.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Henriquez,Theodore A ; Tims,Allan C

Report Date : 30 Jul 1974

Pagination or Media Count : 5

Abstract : The patent describes an electroacoustic transducer wherein the sensing elements comprise a radially polarized ceramic cylinder having annular rings attached to the ends of the ceramic cylinder and a cylindrical insert, centered in said cylinder, is sealed by O rings between the insert and the annular rings. A pair of the ceramic cylinders are connected electrically to form an assembly. The assembly is mounted by rubber mounts in a frame which is surrounded by an expanded metal electrostatic shield. The whole assembly is enclosed within a castor oil filled butyl boot. The assembly has good sensitivity over a wide frequency range.

Descriptors :   *Piezoelectric transducers, *Patents, Sensitivity, Broadband, Stability, Standards

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE