Feasibility Demonstration of Fiber Optic Detection of Low Frequency Sound.
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 31, 1978
- Accession Number
- ADA059241
Entities
People
- James H Cole
- Pravin G. Bhuta
- Robert L. Johnson