Accession Number : ADD005420

Title :   Acoustic Device.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Funk,Clarence J

Report Date : 12 Sep 1978

Pagination or Media Count : 7

Abstract : This patent describes a system for monitoring air-water borne noise generated by an aircraft flying over a body of water from within the aircraft includes a sonobuoy having a phase linear array of hydrophones suspended beneath the surface of the water and an electromagnetic radar transponder to permit accurate location of the surface position of the sonobuoy and a plurality of electroacoustic transponders to provide positioning information for the hydrophone array located in spaced relation from the first sonobuoy. (Author)

Descriptors :   *Patents, *Aircraft noise, *Acoustic detectors, Airborne, Waterborne, Sonobuoys, Phased arrays, Hydrophones, Electromagnetic radiation, Radar, Transponders, Electroacoustic transducers

Subject Categories : Acoustic Detection and Detectors
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE