一氧化碳气体检测仪的算法设计

Algorithm Design of Gas Detector for Carbon Monoxide

基于红外光谱吸收原理,对一氧化碳的浓度检测进行研究。为了在不提高成本的条件下提高设备测量精度,采用二维拉格朗日插值算法对测量alpha表进行插值。实验表明,运用拉格朗日算法进行插值造成的误差在设备误差允许范围内。该方法在同样精度条件下,需要更少的采样点数,从而降低了设备成本。

Based on the principle of infrared spectrum absorption, the detection of the carbon monoxide concentration is researched, in order to improve the equipment detetion accuracy without increasing cost, two-dimensional Lagrange interpola- tion algorithm is adopted to interpolate the measured alpha table. Experiments show that the error caused by Lagrange inter- polation algorithm is within the allowable range of equipment error, and under the conditon of same accuracy, this algorithm requires less sampling points, which reduces the equipment cost.