Accession Number : ADD006870

Title :   Propagation Sampled Acoustic Line Array.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Konrad,William L

Report Date : 27 Nov 1979

Pagination or Media Count : 5

Abstract : This patent discloses an acoustic line array which includes a co-axial cable having a center conductor surrounded by a flexible material of low-electrical conductivity. The flexible material is surrounded by a conducting material protected by an external shield. The cable has characteristic impedance which is sensitive to pressure variations in the medium due to a traveling acoustic pressure wave from an acoustic source. Variations in the impedance of the array are used to detect the acoustic source. Alternatively, the line array makes use of the discrete sensors placed at suitable intervals along the array. This type of acoustic array eliminates the use of a plurality of wires carrying the electrical signals from the transducer to the storage equipment and elaborate multiplexing techniques. (Author)

Descriptors :   *Patents, *Acoustic arrays, Coaxial cables, Pressure transducers

Subject Categories : Acoustics
      Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE