矿用瓦斯抽放多参数传感器示值误差测量结果的不确定度评定

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【摘要】矿用瓦斯抽放多参数传感器适用于煤矿有瓦斯及煤尘爆炸危险的场所,实现管道参数监测(包括差压、温度、瓦斯浓度等)。本文通过具体示例,详尽介绍矿用瓦斯抽放多参数传感器差压、温度、瓦斯浓度的示值误差不确定度评定。
【关键词】矿用瓦斯抽放多参数传感器;差压;温度;瓦斯浓度;不确定度评定
【DOI编码】10.3969/j.issn.1674-4977.2023.05.013
Evaluation of Uncertainty in Measurement Results of Indication Error of Multi Parameter Sensors for Mine Gas Drainage
WAN Jinbi, LU Kuishu*
(Zunyi Product Quality Inspection and Testing Institute, Zunyi 563000, China)
Abstract: The multi parameter sensor for mining gas drainage is suitable for places with gas and coal dust explosion hazards in coal mines, achieving pipeline parameter monitoring (including differential pressure, temperature, gas concentration, etc.). This article provides a detailed introduction to the uncertainty evaluation of differential pressure, temperature, and gas concentration indication errors of multi parameter sensors for mining gas drainage through specific examples.
Key words: multi-parameter sensor for mine gas drainage; differential pressure; temperature; gas concentration; uncertainty evaluation
1差压示值误差测量结果不确定度
1.1测量模型
1.1.1模型公式
1.1.3不确定度主要来源
传感器校准结果的不确定度来源:重复性引入的标准不确定度,分辨力引入的标准不确定度,数字压力计引入的标准不确定度。(剩余2256字)