多参数气体检测设备数据处理研究  

Study of Multi-gas Detector's Data Process

作　　者：张华[1] 杨莉[1] 

机构地区：[1]武汉理工大学自动化学院,武汉430070

出　　处：《自动化与仪表》2008年第10期20-22,共3页Automation & Instrumentation

摘　　要：常用的单气体测量设备只能检测单一气体,进行多参数测量是发展的趋势。该文就多参数检测设备中,传感器信号数据的处理方法做了分析和研究。采用多传感器信号矩阵运算去除气体交叉干扰;针对传感器信号输出非线性的特性,使用最小二乘法进行传感器输出特性曲线的拟合。将上述方法应用到多参数气体检测设备上,进行了相关实验。结果表明,该方法提高了多参数气体检测设备的精度和抗干扰性。The common gas detector can detect one element of gas,and detect multi-gas using one detector is a trend in future. The paper analyze and study the sensor output signal data from multi-gas detector. Construct a matrix using the data that can remove the gas intereross interfere by calculating the matrix. Use the method of leastsquare to fitting the sensor output curve so as to solve the problem of nonlinear sensor output signal. Apply the method to a multi-gas detector. Experiment shows the method has the capacity of improve the precision and interference rejection for the mutil-gas detector.

关 键 词：气体检测 交叉干扰 最小二乘法 

分 类 号：TP212.9[自动化与计算机技术—检测技术与自动化装置]