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Proceedings Paper

Design of non-dispersion infrared detectors data processor on measurement of automobile emission CO and CO2
Author(s): Guohua Liu; Yujun Zhang; Chen Chen; Yibing Lu; Chungui He; Yanwei Gao; Kun You; Ying He; Kai Zhang; Wenqing Liu
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Paper Abstract

For the technical requirements of automobile emission CO and CO2 detector’s data processor, the scheme is based on the detection principle of NDIR method and the implementation of the data processor software as well as hardware is discussed. High-speed, high-precision DSP is selected as the core of the detector’s data acquisition and processing, while four-channel thermoelectricity sensor TPS4339 as infrared detector, digital-analog data acquisition circuit of NDIR is designed and simulated. Then Fast Fourier Transform (FFT) is adopted for signal processing. Automobile emission CO and CO2 concentration can be accurately obtained by appropriately adjusting sampling period and the light source modulation frequencies, the system SNR is improved and the detection limit is reduced. The experimental results show that the detector’s data processor has 3% accuracy and stability which can meet the measurement and analysis of automobile emission CO and CO2 concentration.

Paper Details

Date Published: 1 November 2016
PDF: 12 pages
Proc. SPIE 10157, Infrared Technology and Applications, and Robot Sensing and Advanced Control, 101572Z (1 November 2016); doi: 10.1117/12.2247216
Show Author Affiliations
Guohua Liu, Anhui Institute of Optics and Fine Mechanics (China)
Univ. of Science and Technology of China (China)
Yujun Zhang, Anhui Institute of Optics and Fine Mechanics (China)
Chen Chen, Anhui Institute of Optics and Fine Mechanics (China)
Yibing Lu, Anhui Institute of Optics and Fine Mechanics (China)
Chungui He, Anhui Institute of Optics and Fine Mechanics (China)
Yanwei Gao, Anhui Institute of Optics and Fine Mechanics (China)
Kun You, Anhui Institute of Optics and Fine Mechanics (China)
Ying He, Anhui Institute of Optics and Fine Mechanics (China)
Kai Zhang, Anhui Institute of Optics and Fine Mechanics (China)
Wenqing Liu, Anhui Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 10157:
Infrared Technology and Applications, and Robot Sensing and Advanced Control

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