Accession Number:

ADA071185

Title:

Next Generation Depth Sounder

Descriptive Note:

Quarterly progress rept. no. 1, 27 Sep-27 Dec 1973

Corporate Author:

TEXAS UNIV AT AUSTIN APPLIED RESEARCH LABS

Report Date:

1974-03-08

Pagination or Media Count:

19.0

Abstract:

The first part of this report describes continued technical monitoring of the ANUQN-1,4 retrofit kit procurement. The second item covers work on developing a high frequency transducer for the Next Generation Depth Sounder NGDS. Two preliminary designs are to be tested. One is a 7-element mosaic of 78 in. ceramic discs arranged in a circular pattern, with a center element surrounded by six outer elements. The other is a 3 in. diam ceramic disc that is diced by cutting part way through the element of a rectangular grid pattern. A housing for these elements will consist of a standard ANUQN-4 transducer housing that will also contain six mass-loaded 12 kHz elements of a type already used by the ANUQN-4. The 12 kHz elements will surround the centrally located high frequency element. Preliminary efforts have been directed toward obtaining acoustic signal and noise data from ANUQN-4 depth sounders to ascertain the operating environment within which the signal processor must function.

Subject Categories:

  • Acoustic Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE