Geophone checker
US5121362A · kind A · utility
3Cited by
4References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 15, 1987 |
| Grant date | Jun 9, 1992 |
| Priority date | — |
| Expiry date | Oct 15, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V13/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A checker is provided that attaches to a seismic cable and provides an audible output in response to a mechanical impulse when the polarity of the geophones in that cable are correct. Methods for checking geophones and their polarity and alternative apparatus are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.