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Evaluation of a CO2...
Evaluation of a CO2 sensitive thermopile with an integrated multilayered infrared absorber by using a long path length NDIR platform
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- Ashraf, Shakeel, 1984- (författare)
- Mittuniversitetet,Avdelningen för elektronikkonstruktion
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- Mattsson, Claes, 1978- (författare)
- Mittuniversitetet,Avdelningen för elektronikkonstruktion
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- Thungström, Göran, 1960- (författare)
- Mittuniversitetet,Avdelningen för elektronikkonstruktion
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- Gaynullin, B. (författare)
- Research and Development Department, SenseAir AB, Delsbo
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- Rödjegård, H. (författare)
- Research and Development Department, SenseAir AB, Delsbo
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(creator_code:org_t)
- IEEE, 2018
- 2018
- Engelska.
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Ingår i: I2MTC 2018 - 2018 IEEE International Instrumentation and Measurement Technology Conference. - : IEEE. - 9781538622223 ; , s. 1-6
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- In this work, a mid-infrared-sensitive thermopile detector was evaluated for carbon dioxide gas. The thermopile has an integrated absorber structure that has more than 95% absorption for the wavelength range of 3.3-5.5 μm. For the measurement of carbon dioxide, the detector was initially assembled on a small printed circuit board holder and then installed in a long path length non-dispersive infrared platform. The measurement setup was calibrated by exposing the detector to carbon dioxide of known concentrations (from 50 ppm to 1,300 ppm) and measuring the corresponding voltage response of the detector. The measured voltage values allowed us to calculate the calibration constant for this detector. This was followed by a verification process using a concentration of 500 ppm (which was not used in the calibration) and a known value of 1,300 ppm. The verification results matched with real values, demonstrating that the sensor can be used for highly sensitive and accurate carbon dioxide measurements at concentrations from a few ppm level up to 1,300 ppm. Above this level, additional calibration is needed.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Nyckelord
- Carbon dioxide gas measurement
- LPL-NDIR sensor
- Thermopile detector
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)
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