Acoustic Calibration of a Fiber Optic, Air-Backed, Mandrel Hydrophone with an Interrogation Approach Designed for Low Cost Arrays
[Technical Report, Memorandum Report]
NAVAL RESEARCH LAB WASHINGTON DC
Pagination or Media Count:
This report describes some of NRLs earliest work performed on a Rayleigh backscatter interrogation system used to calibrate a fiber optic air backed mandrel hydrophone. It provides insight into this unique form of interrogation and may be relevant to current day research into Rayleigh based interrogation systems. The work was written up in the 19961997 time-frame, and submitted for publication as an NRL Memorandum Report, but for unknown reasons was not published. Original Abstract Using a novel fiber optic interrogation approach tailored for low cost arrays, a calibration of an air-backed mandrel has been successfully performed. The measurements were performed in June 1996. This interrogation approach has the potential to lower wet-end cost of acoustic arrays by an order of magnitude.
- Electrical and Electronic Equipment