Gravity gradiometer and method for calculating a gravity tensor with increased accuracy
US6799459B2 · kind B2 · utility
14Cited by
8References
20Claims
0Family size
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Key dates
| Filing date | Mar 6, 2003 |
| Grant date | Oct 5, 2004 |
| Priority date | — |
| Expiry date | Mar 6, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V7/16
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method includes measuring an acceleration along an input axis of an accelerometer mounted to a gradiometer disc, the accelerometer having a coordinate axis that is parallel to a spin axis of the disc, and includes calculating a gravity tensor element as a function of the measured acceleration and a component of the measured acceleration caused by an acceleration along the coordinate axis. Consequently, this technique typically yields a more accurate calculation of the gravitational field by accounting for undesired accelerations picked up by accelerometers having input axes that are not parallel to the gradiometer disc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.