Mining NDIR gas sensor and concentration quantitative analysis temperature compensation method
A gas sensor and mine-used technology, which is applied to the analysis of materials, material analysis through optical means, instruments, etc., can solve the problems of inaccurate detection results and other problems, and achieve the goal of ensuring accuracy, eliminating errors, eliminating hardware fluctuations and system drift Effect
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[0053] see figure 1 , a mine-used NDIR gas sensor, comprising an infrared modulation light source 1, a microprocessor 2, an A / D analog-to-digital converter 3, a multi-channel converter 4, an amplifier 5, a gas pool 6, an air outlet 11, and an air inlet 12 The infrared modulation light source (providing blackbody radiation light 1 is placed on one end of the gas pool 6, an air outlet and an air inlet are provided on the top of the gas pool 6, and the other end of the gas pool 6 is provided with a light filter 7 to be measured and a reference light filter 9, and a photodetector to be tested 8 and a reference photodetector 10 are respectively arranged at corresponding positions on the rear side of the photofilter to be tested 7 and the reference photofilter 9, and the infrared modulation light source 1 is respectively arranged on the The microprocessor 2, A / D analog-to-digital converter 3, multi-channel converter 4, and amplifier 5 outside the gas cell 6 are electrically connecte...
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