Fiber optic temperature sensor
US5870511A · kind A · utility
28Cited by
23References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 27, 1997 |
| Grant date | Feb 9, 1999 |
| Priority date | — |
| Expiry date | Jan 27, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K11/125
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A fiber optic temperature sensor uses a light source which transmits light through an optical fiber to a sensor head at the opposite end of the optical fiber from the light source. The sensor head has a housing coupled to the end of the optical fiber. A metallic reflective surface is coupled to the housing adjacent the end of the optical fiber to form a gap having a predetermined length between the reflective surface and the optical fiber. A detection system is also coupled to the optical fiber which determines the temperature at the sensor head from an interference pattern of light which is reflected from the reflective surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.