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中文摘要：
从红外光谱吸收理论出发，提出了一种高精度的红外光学气体传感器气体浓度信号处理方法。重点阐述了气体浓度计算模型的建立和各参数的实验确定方法。从气体浓度计算的原理分析入手，通过逐步修正郎伯-比尔定律得到了一个有效的气体浓度函数关系式，供计算气体浓度用。为了减少外界温度对传感器检测结果的影响，实施了温度补偿，使得传感器能在不同温度条件下使用。经测试，传感器达到了100×10-6的分辨能力，具有良好的稳定性，能够满足许多场合的使用。
英文摘要：
From the basic principle of infrared spectrum absorption method, the high-precision gas concentration signal processing calculation method of the IR optical sensor was presented. This paper focused on the establishment of the gas concentration calculation model and experimental method for determining the various parameters. From the analysis of the principle of gas concentration calculation method, a new formula for gas detection was obtained by gradually modifying the Lambert-Beer law. The formula can be used to calculate gas concentration. To reduce the environmental temperature influence on the detection results of infrared gas concentration, temperature compensation was required. Through temperature compensation, the sensor can be used in various temperature conditions. After measurement, the sensor has good stability and realizes the 100í10-6 distinguishing ability. It meets most occasions use requirement.
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