Compact optical gyro
US4588296A · kind A · utility
62Cited by
3References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 7, 1981 |
| Grant date | May 13, 1986 |
| Priority date | — |
| Expiry date | Oct 7, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C19/64
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An improved compact optical gyro is provided wherein a beam of light is split and introduced into both ends of an optic coil whose rotation is to be sensed. At least one frequency shifter is placed to affect the frequency of the beam to introduce or adjust a nonreciprocal phase shift. The beams are then mixed back together and the resultant beam is detected and analyzed by suitable circuitry to provide an output indicative of the rotation of the light path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.