Accession Number:

ADD019304

Title:

Concentric Fluid Acoustic Transponder

Descriptive Note:

Patent, Filed 13 Aug 97, patented 13 Oct 98

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

Report Date:

1998-10-13

Pagination or Media Count:

30.0

Abstract:

An acoustic transponder method and apparatus provides a high degree of frequency and target strength selectivity by utilizing two or more concentrically disposed, hollow spheres each containing acoustically refractive fluids. The invention provides the possibility of using spheres of a variety of diameters and as well a number of different refractive fluids, enabling the production of an acoustic transponder having a wide variety of selective frequency responses as well as effective target diameters.

Subject Categories:

  • Acoustic Detection and Detectors
  • Underwater and Marine Navigation and Guidance

Distribution Statement:

APPROVED FOR PUBLIC RELEASE