Measurement for Methane Concentration Based on Feature Variable Extraction and Feature Variable Selection

机译：基于特征变量提取和特征变量选择的甲烷浓度测量

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Heat modulation is brought to bear on semiconducting metal oxide methane sensor. Feature variables are extracted from the output of sensor. And then, the optimal feature variable subset and suboptimal feature variable subset are selected from the extracted feature variable set. With the subsets, the measurement system for methane concentration is calibrated, and then practical measurement is done. The practical measurement results show that the interference of temperature to the measurement of methane concentration can be avoided using this method. At the same time, temperature can also be measured, so multi-parameter measurement can be done with only one sensor.

机译：热调制作用在半导体金属氧化物甲烷传感器上。从传感器的输出中提取特征变量。然后，从提取的特征变量集中选择最优特征变量子集和次优特征变量子集。利用这些子集，对甲烷浓度测量系统进行校准，然后进行实际测量。实际测量结果表明，采用该方法可以避免温度对甲烷浓度测量的干扰。同时，还可以测量温度，因此仅使用一个传感器即可完成多参数测量。

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《International Symposium on Test and Measurement;ISTM/2005》|2005年|P.1-4|共4页
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Tang Xiaojun; Zhang Jinyong; Liu Junhua;
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正文语种
中图分类实验测量及自动化技术;
关键词
semiconducting metal oxide methane sensor; measurement for methane; feature variable; sensor modulation;

机译：半导体金属氧化物甲烷传感器;甲烷测量;特征量;传感器调制;

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Measurement for Methane Concentration Based on Feature Variable Extraction and Feature Variable Selection

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