Methods and apparatus for reducing vibration rectification errors in closed-loop accelerometers
US7131315B2 · kind B2 · utility
6Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2005 |
| Grant date | Nov 7, 2006 |
| Priority date | — |
| Expiry date | Apr 27, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P15/13
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems and methods for minimizing vibration rectification error (VRE) for a closed-loop accelerometer. In one embodiment, the method includes applying a known vibration signal to the closed-loop accelerometer along a first axis and adjusting a feedback gain setting until VRE is below a first threshold value. After the feedback gain setting has been adjusted, applying a random vibration signal to the closed-loop accelerometer along the first axis and adjusting a servo system proportional gain value until VRE is below a second threshold value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.