Compensated infrared absorption sensor for carbon dioxide and other infrared absorbing gases
Patent
·
OSTI ID:1175564
A gas sensor, whose chamber uses filters and choppers in either a semicircular geometry or annular geometry, and incorporates separate infrared radiation filters and optical choppers. This configuration facilitates the use of a single infrared radiation source and a single detector for infrared measurements at two wavelengths, such that measurement errors may be compensated.
- Research Organization:
- Southwest Research Institute, San Antonio, TX (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FC21-96MC33033
- Assignee:
- Southwest Research Institute
- Patent Number(s):
- 6,969,857
- Application Number:
- 10/753,614
- OSTI ID:
- 1175564
- Country of Publication:
- United States
- Language:
- English
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