Spectral optic temperature sensor
US4778270A · kind A · utility
11Cited by
4References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 20, 1987 |
| Grant date | Oct 18, 1988 |
| Priority date | — |
| Expiry date | Jan 20, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K11/18
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention is a temperature sensor which uses the variation in the critical angle between two optically transparent media, at least one of which has an index of refraction variable as a function of temperature, to variably refract and reflect portions of a spectrum incident on the junction of the media at angles less than and greater than the critical angle to produce an optical signal variable as a function of temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.