Accession Number : ADD007405

Title :   Device for Simulating Marine Craft Noises.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Evans,David J ; Bradley,Clark F

Report Date : 29 Apr 1980

Pagination or Media Count : 11

Abstract : In combination in electronic apparatus for simulating the self-noise of a submarine, means for generating a wide-band noise signal, means for modulating the noise signal at a frequency corresponding to the propeller speed of a submarine, means for generating a signal at the frequency of the tooth impacts of the main drive gear of a submarine, and amplifying and output means for both said tones. (Author)

Descriptors :   *Patents, *Submarine noise, *Self noise, *Simulators, *Underwater equipment, *Propeller noise, Circuits, Diagrams, Training devices, Decoys, Inventions

Subject Categories : Submarine Engineering
      Test Facilities, Equipment and Methods
      Acoustic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE