Gravity gradiometer
US7849739B2 · kind B2 · utility
6Cited by
46References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2007 |
| Grant date | Dec 14, 2010 |
| Priority date | — |
| Expiry date | Sep 1, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V7/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A gravity gradiometer is described which comprises a pair of sensor bars arranged in housings. Transducers are arranged adjacent the bars for measuring movement of the bars in response to the gravity gradient tensor. At least one of the transducers has a sensing coil and a capacitor plate having a concentric arrangement with the sensing coil for providing one plate of a capacitor used in a balancing circuit for measuring the balance of the sensor mass.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.