火花试验装置灵敏度参数测得值的不确定度评定  

Evaluation of Uncertainty in Measurement Results about Sensitivity Parameters of Spark Test Equipment

作　　者：薛琴 XUE Qin

机构地区：[1]中国煤炭科工集团西安研究院有限公司

出　　处：《计量与测试技术》2022年第11期110-112,共3页Metrology & Measurement Technique

基　　金：中国煤炭科工集团西安研究院有限公司创新基金项目(项目编号:2020XAYPT01)。

摘　　要：火花试验装置是依据国家标准GB/T 3836.4-2021要求进行设计,用于本质安全型电气设备的火花试验的检验设备。火花试验装置的灵敏度检查是每一系列火花试验前进行点燃符合性标校的依据,其爆炸性试验混合物浓度的配比、标定电路参数与内嵌仪表精度的准确性直接关系着矿用防爆电气产品的安全使用。我国目前尚没有火花试验装置的检定规程。为评定灵敏度参数测试的可靠性,提高测得值之间的可比性,对测试过程中的影响因素进行了分析,建立测量模型,对火花试验装置灵敏度参数测得值进行不确定度评定。The spark testing equipment is designed according to National Standard GB/T 3836.4-2021,which is used for spark testing of intrinsic safety electrical equipment.Sensitivity check of spark testing device is basis for calibration of ignition compliance before each series of spark tests.The concentration ratio of explosive test mixture,calibration circuit parameters and accuracy of built-in instrument are directly related to the safe use of mine explo-sion-proof electrical products.At present,there is no verification regulation for spark test equipment in China.In order to evaluate the reliability of the sensitivity parameter test and improve the comparability of test results,the in-fluence factors in the test process are analyzed,the measurement model is established,and the uncertainty evaluation of the measurement results of the sensitivity parameters of the spark testing device is carried out.

关 键 词：火花试验装置 标定电路 灵敏度 

分 类 号：TD687[矿业工程—矿山机电]