Fiber-optic vibration sensor
US5063781A · kind A · utility
26Cited by
4References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 3, 1989 |
| Grant date | Nov 12, 1991 |
| Priority date | — |
| Expiry date | Aug 3, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01H9/006
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The sensor comprises a vibrating sheet (1), mechanically connected to the body (5A) to be analyzed, and an optical triangulation recording system for recording the displacements of the movable part of the sheet, in particular the free end (1B) opposite to that which is restrained. The recording system comprises two optical fibers (7, 9) ending in microlenses (10, 12) having optical axes mutually inclined and converging in the movable part (1B) of the sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.