Control circuit for accelerometer
US4336718A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 8, 1980 |
| Grant date | Jun 29, 1982 |
| Priority date | — |
| Expiry date | Sep 8, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P15/132
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pendulously supported proof mass accelerometer wherein a pulse generator applies periodic pulses to a bridge circuit comprising variable resistors and pick-off capacitors to generate a restoring current to maintain the proof mass in a null position. The variable resistors of the bridge circuit provide a means of varying the null position of the proof mass to achieve substantially balanced linear operation of the accelerometer circuitry. A bias compensation circuit applies a correction current to an output circuit which is equal in magnitude and opposite in direction to output current produced by static bias factors of the accelerometer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.