Sensor for measuring temperature and/or concentration
US6341890B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 1999 |
| Grant date | Jan 29, 2002 |
| Priority date | — |
| Expiry date | Jan 19, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J5/061
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor used to measure temperature or concentration of a combustible gas. The sensor includes an optical head that picks up infrared information emitted by the combustible gas. The infrared information is conveyed from the optical sensor through a diffracting device onto a strip of photodetectors. A processor receives the information garnered by the photodetectors and determines the concentration and temperature profile of the combustible gas based on a stored thermodynamic model, radiation behavior, varying the thermodynamic parameters, and comparing a calculated spectrum with the measured spectrum. The sensor additionally has elements, such as cooling devices and casing to make it suitable for use with aviation where altitude creates problems with known methods of gas temperature analysis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.