Dual-axis force feedback accelerometer
US5789677A · kind A · utility
7Cited by
2References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 19, 1996 |
| Grant date | Aug 4, 1998 |
| Priority date | — |
| Expiry date | Dec 19, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P15/132
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A force-feedback accelerometer to measure small accelerations along two or more co-planar axes. A fiber suspension of a proof mass provides mechanical sensitivity; a cylindrical cross-section on the proof mass, with orthogonal optical position sensing, reduces sensitivity to torsional accelerations. Coupling both proof mass position and proof mass velocity to the feedback force eliminates the disadavantages associated with other forms of damping.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.