Seismic sensor
US6751162B2 · kind B2 · utility
36Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2002 |
| Grant date | Jun 15, 2004 |
| Priority date | — |
| Expiry date | Nov 19, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S181/402
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A seismic sensor contains a geophone (4) disposed within a housing (12). The sensor is also provided with locking means (14, 19, 21) that can either lock the geophone 4 relative to the housing, or can allow the geophone to rotate within the housing.The geophone (4) is enclosed in a casing (1) which is so constructed that the overall mass distribution of the casing and geophone is uneven. The casing and geophone assembly thus adopts a preferred orientation when the sensor is unlocked.A liquid can be disposed within the housing, so that the casing (1) and geophone (4) can float when the sensor is unlocked.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.