Self-calibrating accelerometer
US7640786B2 · kind B2 · utility
9Cited by
3References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 28, 2007 |
| Grant date | Jan 5, 2010 |
| Priority date | — |
| Expiry date | Jul 2, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P2015/0831
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The method and apparatus in one embodiment may have: a sensing element for an accelerometer having a bias, the sensing element having a rectangular plate supported by flexures which allow rotation about a transverse center line thereof; a center of mass (CG) of the sensing element having two stable positions, one on each side of an axis of rotation defined by a centerline of suspension; a secondary mass within a proofmass translates in-plane to move the center of mass to thereby effect a self-calibration mechanization that continuously measures and nulls the accelerometer's bias under dynamic operating conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.