Accession Number:

ADA059241

Title:

Feasibility Demonstration of Fiber Optic Detection of Low Frequency Sound.

Descriptive Note:

Annual rept. 28 Feb 77-31 Jun 78 on Phase 2,

Corporate Author:

TRW DEFENSE AND SPACE SYSTEMS GROUP REDONDO BEACH CALIF

Report Date:

1978-07-31

Pagination or Media Count:

35.0

Abstract:

A scale-up of the single sensor interferometer previously employed was completed. The expected improvement in acoustic sensitivity was not obtained. Experiments were performed to demonstrate that system noise would not allow attainment of the theoretical sensitivity threshold. Alternate differential interferometer configurations demonstrated reduced system noise and acoustic detection from 100 Hz to 1 KHz was achieved. Author

Subject Categories:

  • Acoustic Detection and Detectors
  • Optical Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE