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This content will become publicly available on January 31, 2019

Title: Thermal effects of an ICL-based mid-infrared CH 4 sensor within a wide atmospheric temperature range

Here, thermal effects of an interband cascade laser (ICL) based mid-infrared methane (CH 4) sensor that uses long-path absorption spectroscopy were studied. The sensor performance in the laboratory at a constant temperature of ~ 25°C was measured for 5 hours and its Allan deviation was ~ 2 ppbv with a 1 s averaging time. A LabVIEW-based simulation program was developed to study thermal effects on infrared absorption and a temperature compensation technique was developed to control such effects. An environmental test chamber was employed to investigate thermal effects that occur in the sensor system with variation of the test chamber temperature between 10 and 30°C. The thermal response of the sensor in a laboratory setting was observed using a 2.1 ppm CH 4 standard gas sample. indoor/outdoor CH 4 measurements were conducted to evaluate the sensor performance within a wide atmospheric temperature range.
ORCiD logo [1] ;  [2] ;  [3] ;  [3] ;  [4] ;  [3] ;  [3] ;  [3]
  1. Shantou Univ., Shantou (People's Republic of China); Rice Univ., Houston, TX (United States)
  2. Jilin Univ., Changchun (People's Republic of China)
  3. Rice Univ., Houston, TX (United States)
  4. Rice Univ., Houston, TX (United States); Jilin Univ., Changchun (People's Republic of China)
Publication Date:
Report Number(s):
Journal ID: ISSN 1350-4495; PII: S1350449517306977
Grant/Contract Number:
Accepted Manuscript
Journal Name:
Infrared Physics and Technology
Additional Journal Information:
Journal Volume: 89; Journal Issue: C; Journal ID: ISSN 1350-4495
Research Org:
Rice Univ., Houston, TX (United States)
Sponsoring Org:
USDOE Advanced Research Projects Agency - Energy (ARPA-E)
Country of Publication:
United States
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; laser sensors; infrared spectroscopy; thermal effects; temperature compensation
OSTI Identifier: