Accession Number : ADD003798

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 : 19 Nov 1976

Pagination or Media Count : 10

Abstract : 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 proportionality 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 toroidal beam. (Author)

Descriptors :   *Patent applications, *Transducers, *Acoustic arrays, Broadband, Resonant frequency

Subject Categories : Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE