High sensitivity fiber optic hydrophone
US6049511A · kind A · utility
6Cited by
4References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 7, 1999 |
| Grant date | Apr 11, 2000 |
| Priority date | — |
| Expiry date | May 7, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/186
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A fiber optic hydrophone structure comprises a casing around which is wound an optical fiber. The casing includes complementary top and bottom diaphragm members that mesh together and which are separated by a spacer ring. The spacer ring is tapered to knife edges which abut the inside surfaces of the top and bottom diaphragm members. The spacer thus acts as a fulcrum when a seismic signal causes motion of the diaphragms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.