Fiber optic displacement measuring apparatus
US3940608A · kind A · utility
114Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 4, 1974 |
| Grant date | Feb 24, 1976 |
| Priority date | — |
| Expiry date | Feb 4, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/268
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Fiber optic displacement/position measuring apparatus having increased working distance and measuring range capability is provided by combining an optical extending sensing head in fixed relationship with the common end of a bifurcated fiber optic bundle. The sensing head includes a lens system which is operative to focus the image of the end face of the fiber optic bundle onto the surface of an object whose displacement is to be determined and to refocus that image back onto the end in an upright relationship.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.