| Autor: |
Li, Yun Cheng, Liang, Yong Zhi, Ma, Xi Sheng, Jia, Wen Pei |
| Zdroj: |
Applied Mechanics and Materials; June 2014, Vol. 590 Issue: 1 p651-655, 5p |
| Abstrakt: |
This paper presents a structural design of a methane sensor based on the principle of infrared detection, and designs a program of the experimental calibration. In the conditions of laboratory, different concentrations of methane gas were detected. A concentration inversion formula was proposed by the segmented least-square fitting method. The sensor can measure concentrations of methane in a real-time and accurate way, it contains the functions that digital display and sound and light alarm. The results show that a full-scale concentrations of methane gas can be detected, when the concentration range is in 0-10%, the absolute error is less than 0.09%; when it is more than 10%, the absolute error is less than 0.2%, the response time is less than 15s. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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