电磁流量计测得值的不确定度评定(静态容积法)

Evaluation of Uncertainty for Measurement Result of Electromagnetic Flowmeters(Static Volumetric Method)

为保证电磁流量计在测量过程中受液体温度、压力、流量等参数影响下测得值的准确、可靠,因此测得值的不确定度评定十分重要。本文依据国家检定规程JJG1033-2007《电磁流量计》,选取静态容积法水流量标准装置为测量装置,以DN100的电磁流量计为例,进行测得值的不确定度分析与评定。

In order to ensure the accuracy and reliability of electromagnetic flowmeters under the influence of liquid temperature, pressure, flow, the uncertainty evaluation of the measurement results is very important.According to the national verification regulation JJG 1033-2007 "Electromagnetic Flowmeters", the water flow standard device of static volumetric method is selected as the measuring device.Taking the electromagnetic flowmeters of DN100 as an example, the uncertainty of measurement results is analyzed and evaluated.