Accession Number:

ADA239821

Title:

STM-Based Hydrophone Sensors.

Descriptive Note:

Progress rept. no. 2.

Corporate Author:

SARCOS RESEARCH CORP SALT LAKE CITY UT

Personal Author(s):

Report Date:

1991-07-08

Pagination or Media Count:

2.0

Abstract:

The following activities are reported Numerous meetings have taken place with the two experts whom we have signed on as consultants--one in the area of hydrophones, the other in the area of STMs. Preliminary hydrophone transducer packages have been designed, incorporating tunneling transducer elements. Singlechip, integrated sensor plus power electronics plus multiplexing designs are presently under consideration, Additional calculations of membrane deflections and frequency responses versus membrane dimensions, consistent with tunneling sensitivities, have been made, Analytical comparisons have been made between STM devices and capacitive-based systems, PZLT-based systems, and interferometric-based systems, for SNRs and sensitivity, Estimates of power consumption of servo-controlled STM-based hydrophones are being made, and compared to existing hydrophones, and Estimates of the self-noise generated by a servo-controlled STM-based hydrophone are being made.

Subject Categories:

  • Acoustics
  • Quantum Theory and Relativity

Distribution Statement:

APPROVED FOR PUBLIC RELEASE