恒压法校准正压漏孔的测量不确定度评定  

UNCERTAINTY EVALUATION OF CALIBRATION SPECIFICATION FOR PRESSURE REFERENCE LEAK

作　　者：张瑞芳[1] 冯焱[1] 张涤新[1] 赵澜[1] 

机构地区：[1]兰州空间技术物理研究所国防科技工业真空一级计量站,甘肃兰州730000

出　　处：《真空与低温》2014年第4期230-233,共4页Vacuum and Cryogenics

摘　　要：为评定恒压法校准正压漏孔的测量不确定度,建立恒压法正压漏孔校准结果测量不确定度评定的数学模型,分析不确定度各影响分量及其灵敏系数,由恒压法校准正压漏孔的A类标准不确定度评定及B类标准不确定度评定,计算出恒压法校准正压漏孔的相对扩展不确定度,并通过实验给出恒压法校准正压漏孔的测量不确定度评定示例。For evaluate uncertainty of calibration specification for pressure reference leak, establish math model, ana- lyze the influence and the sensitive of uncertainty, and evaluate the uncertainty caused by thecalibration apparatus and re- peatmeasure, comparatively extendable uncertainty of calibration specification for pressure reference leak could be gained. Through experimentation, a demonstration of calibration specification for pressure reference leak is given.

关 键 词：恒压法 正压漏孔 不确定度评定 

分 类 号：TB771[一般工业技术—真空技术]