Discussion on the Application of Measurement Reproducibility in Gas Flow Standard Devices by Master Meter Method

Mingchang Guo,Chi Wang, Hongwei Zheng, Chuanbo Zheng

Abstract

Based on the analysis of the test results of several gas flow standard devices by master meter method, it is found that under the same flowing conditions, the indication errors of a meter under test at the same flow rate with different master meters in a set of standard device are not consistent with each other, the deviations are 0.08 % ~ 0.21 %, that is, there will be a non-negligible systematic deviation in the results of the verification or calibration of the flow meter with different master meters. In the present paper, the reproducibility of test results is innovatively introduced to measure the consistency of measurement results of different master meters in a gas flow standard device, and the reproducibility application in the performance examination, uncertainty evaluation and quantity transfer of a gas flow standard device is discussed.

Keywords

Reproducibility; Repeatability; Gas flow standard device

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IMEKO-TC9-2019-015.pdf

DOI

10.21014/tc9-2022.015

IMEKO TC

TC9 - Flow Measurement

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