High sensitivity fiber optic rotation sensor
US6718078B2 · kind B2 · utility
2Cited by
12References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2002 |
| Grant date | Apr 6, 2004 |
| Priority date | — |
| Expiry date | Sep 28, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/266
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to a fiber optic rotation sensing device. The sensing device includes a stationary base, a rotatable member, and an optical fiber configured in at least one loop about the rotatable member. The optical fiber is secured to an exterior portion of the rotatable member and to the base. Rotation of the rotatable member causes a distortion of the at least one loop and a change in the intensity of the light passing through the optical fiber. The change in light intensity is measured to provide an indication of the degree of twist of the rotatable member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.