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Gas sensor control device and infrared analytical gas concentration detection device
Gas sensor control device and infrared analytical gas concentration detection device
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机译：气体传感器控制装置和红外分析气体浓度检测装置
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摘要
PROBLEM TO BE SOLVED: To provide a gas sensor control device and an infrared analysis type gas concentration detection device in which a decline in gas concentration detection accuracy due to a temporal change in a gas sensor measurement environment is suppressed.SOLUTION: Provided is a gas sensor control device 1 comprising light source control units 50, 61 for alternately switching the luminous energy of an infrared ray radiated from a gas sensor 100 so that it becomes a set luminous energy differing between a first cycle time TW1 and a second cycle time TW2, and a gas concentration arithmetic unit 50 for computing the concentration of a gas to be measured from an infrared ray detection signal. Where it is assumed that a detection signal in the first cycle time is a first detection signal VH and a detection signal in the second cycle time is a second detection signal VL, the gas concentration arithmetic unit computes the concentration of the gas to be measured on the basis of a first information group comprising a first average signal VH1' derived by averaging the values of first detection signals VH1, VH2 at two first cycle times TW1, TW3 that are consecutive in time and a second detection signal VL1 detected in the second cycle time TW2 between the two first cycle times.
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