Accession Number : ADD001431

Title :   Wide Band Proportional Transducer Array.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Barlow,Michael L

Report Date : 29 Aug 1974

Pagination or Media Count : 8

Abstract : The patent application describes a wide band proportional transducer array including a plurality of active acoustic elements. The elements are concentrically mounted to form a conical array. A proportionality constant k is selected to be such that a nearly constant composite array impedence is achieved. The porportionality constant relates to the ratio of the resonant frequencies of adjacent elements and inversely as the ratio to their physical sizes. Another embodiment employs a pair of conical arrays which results in a torroidal beam.

Descriptors :   *Acoustic arrays, Patents, Broadband, Electroacoustic transducers, Conical bodies, Beam forming

Subject Categories : Acoustic Detection and Detectors
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE