大口径气体流量标准装置测量不确定度分析

The Analysis of Uncertainty in Measurement about Big Diameter Gas Flow Standard Meter

本文叙述了装置的基本原理,重点描述了装置的数学模型,对不确定度的来源进行了分析。根据JJF1059-1999《测量不确定度评定与表示》和JJG643-2003《标准表法流量标准装置检定规程》的规定,对气体流量标准装置的测量不确定度进行评定。

The article introduces standard facility about base principle. Emphasis describes the maths model. Research the uncertainty source. Ac cording JJF 1059 - 1999 〈Evaluation and expression of unc ertainty in measurement〉 and JJG643-2003 〈Flow standard facilities by master meter method〉. I evaluate the uncertainty in measurement of the standard facility.