Pressure tolerant fiber optic hydrophone
US7295493B1 · kind B1 · utility
4Cited by
22References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 19, 2006 |
| Grant date | Nov 13, 2007 |
| Priority date | — |
| Expiry date | Oct 19, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01H9/004
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An interferometric hydrophone is disclosed that comprises a first mandrel defining an interior that is open to surrounding fluid. A sensing optical fiber is wound upon the first mandrel. A second mandrel is positioned in surrounding relationship with respect to the first mandrel. The first and second mandrels define a first chamber therebetween. A case encloses the first and second mandrels and first chamber. The cylindrical case and the second cylindrical mandrel define a second chamber therebetween, which is sealed and filled with gas or vacuum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.