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可燃性气体浓度检测 ——基于双波段四探测器检验

Combustible gas concentration detection - based on dual-band four-detector inspection

Modern Instrumentation and Equipment / 2019,1(2): 59-65 / 2019-12-18 895 984

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• Authors: 余周 左文涛*
• Information:

  滨州职业学院，滨州

• Keywords:
  Absorption spectrum; Combustible gas; Microchange signal amplification
  吸收光谱; 可燃气体; 微变信号放大
• Abstract: Principle of detecting combustible gas concentration with dual-band four-detector of absorption spectrum; The compensation method is used to separate the weak and slightly variable signals from the detector to offset the working point drift of the detection circuit. In order to reduce the influence of environmental conditions change, detecting light intensity and detector responsiveness instability factors, measures such as de-extremum software filtering and compensation for environmental factors are adopted to improve the detection accuracy of combustible gas. 吸收光谱式双波段四探测器检测可燃性气体浓度原理；利用补偿法分离探测器输出的微弱、微变信号，抵消探测电路的工作点漂移；采用去极值软件滤波和对环境因素进行补偿等措施始以减少环境条件变化、探测光强度和探测器响应度不稳定因素等影响，提高对可燃性气体检测精度。
• DOI: https://doi.org/10.35534/mie.0102008c
• Cite: 余周，左文涛．可燃性气体浓度检测——基于双波段四探测器检验［J］．现代仪器与设备，2019，1（2）：59-65．