Apparatus and method for trimming of fiber optic winding
US5506923A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 1994 |
| Grant date | Apr 9, 1996 |
| Priority date | — |
| Expiry date | Apr 22, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4457
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a optical fiber coil arrangement for use in rotation sensors, for example, axial and/or radial errors can be reduced or substantially eliminated by employing trimming lengths of the first and second ends of the optical fiber used to wind the coil. The first and second ends are spatially separated from one another so as to reduce such errors. The trimming lengths may be in the form of trimming turns. To eliminate axial errors, the first end is formed into a first number of trimming turns and the second end is formed into a second number of trimming turns so that the first and second number of trimming turns are spatially offset from each other in an axial direction. To eliminate radial errors, the first end is formed into a first number of trimming turns and the second end is formed into a second number of trimming turns so that the first and second number of trimming turns are spatially offset from each other in a radial direction. Radial and axial compensation may be combined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.