Geophone with optical fiber pressure sensor
US6307809A · kind A · utility
7Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 11, 1999 |
| Grant date | Oct 23, 2001 |
| Priority date | — |
| Expiry date | Jun 11, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/186
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pressure sensitive optical fiber is enclosed within a pressure chamber. A mass is positioned so as to vary the pressure in the pressure chamber in response to a seismic signal. Variations in the chamber pressure are directly detected by the pressure sensitive fiber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.