Accession Number:

ADD020299

Title:

Marine Acoustic Sensor Assembly

Descriptive Note:

Patent application, Filed 3 Jul 2007

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

Report Date:

2007-07-03

Pagination or Media Count:

12.0

Abstract:

A marine acoustic sensor assembly includes an acoustic panel having a forward surface and an after surface, a laser scanner oriented so as to project a laser beam onto the acoustic panel after surface, and a sensor oriented so as to receive reflections of the laser beam off the acoustic panel and to transmit data from which a position of a sound generating source can be determined, wherein the acoustic panel is provided with an absorber layer extending over the after surface thereof, and the absorber layer is provided with holes extending therethrough, the holes being of a size sufficient to permit passage of the laser beams to the acoustic panel after surface and the reflections to pass to the sensor, whereby to minimize reflections and noise originating from aft of the after surface, while permitting sound incoming from forward of the acoustic panel to be measured.

Subject Categories:

  • Acoustic Detection and Detectors
  • Marine Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE