Opto-electronic detection device for remotely detecting a physical magnitude
US4867565A · kind A · utility
22Cited by
1References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 12, 1987 |
| Grant date | Sep 19, 1989 |
| Priority date | — |
| Expiry date | Nov 12, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K11/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A spectrum modulation encoding sensor subjected to the physical magnitude to be measured is connected by an optical fiber to a source of incoherent light, and by an optical fiber to a static demodulation system comprising a set of birefringent elements producing a birefringence gradient along a privileged optical direction x; the system demodulates the signal provided by the sensor optically by means of a Fourier transform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.