一般压力表示值误差的不确定度分析与评定

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Analysis and Evaluation of Uncertainty of Error in General Pressure Indicating Value

JI Yu* DONG Ji-guo LIU Xiao-yu （Aksu Regional Metrology Calibration Institute）

Abstract： A general pressure gauge isa measuring instrument for detecting the size of pressure values， with the advantages of practicality，economy，andaffordability，andtherefore itis widelyused.According to JG52-2013， Elastic Element Pressure Gauges， Pressure-Vacuum Gauges and Vacuum Gauges for General Use，a 0.4-grade precision pressure gauge isusedasa standardinstrument forcalibrating l.6-gradegeneralpressure gauges toevaluate the uncertaintyofthe measuredvalue ofgeneralpressure gauges，andprovide reference forenterprisesandinstitutions to develop new measurement standards and compare work.

Keywords： general pressure gauge， indication error， measurement uncertainty

一般压力表是一种指示压力大小的仪表，通过指针直接显示压力大小，主要应用在安全防护领域，例如测量锅炉压力和管道压力等，广泛被应用于石油、机械等领域。（剩余4167字）