Dither control system for a ring laser gyro
US6476918B1 · kind B1 · utility
6Cited by
14References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 21, 2001 |
| Grant date | Nov 5, 2002 |
| Priority date | — |
| Expiry date | Jun 21, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C19/68
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A dither control system for a laser gyro having a dither motor for dithering the laser gyro through a desired angular displacement, known as the command angle, in response to a drive signal. In order to help avoid saturation of the laser gyro, the dither control system reduces the command angle by command angle reduction data when the average drive signal applied to the dither motor exceeds a maximum drive value until the command angle reduction data reaches zero. The command angle reduction value is calculated by integrating the difference between the average drive signal and the maximum drive value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.