Reduced noise fiber optic towed array and method of using same
US5345522A · kind A · utility
239Cited by
13References
8Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 2, 1992 |
| Grant date | Sep 6, 1994 |
| Priority date | — |
| Expiry date | Sep 2, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/201
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensitive towed optical fiber sensor array 50, wherein the fiber sensors (60A-60N) are connected in parallel, and the optical fiber cable (34) is paid out from the towing ship at a velocity about equal to but opposite to the velocity of the towing ship. The fiber sensors (60A-60N) are immune to electromagnetic interference, and the output of the sensors can be isolated readily to the parallel hookup of the sensors. Turbulence and acceleration noise is greatly reduced due to the manner in which the fiber cable (34) is paid out, and crosstalk between sensors is eliminated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.