Study on Transfer Standard Stability of Flow Facilities Comparison Based on Principal Component Analysis
MENG Tao1,2, WANG Chi2, XING Chao2
1. School of Instrument Science and Opto-Electronics Engineering, Beihang University, Beijing 100191, China
2. National Institute of Metrology, Beijing 100029, China
Abstract：A transfer standard that were composed of an electromagnetic flowmeter and a turbine flowmeter connecting in serial was designed for water flow facilities comparison. The principal component analysis method was used to separate the dispersion of the comparison participating facilities and the fluctuation of transfer standard, and its principle and implementation process were presented. The applicability of the principal component analysis method was studied. According to the relationship between different principal components, a set of evaluation criteria for the transfer standard stability was proposed. Taking a water flow facilities comparison as an example, the validity of the comparison result was evaluated from the perspective of transfer standard stability, and the estimated value is 0.015%. The method improves the reliability of the evaluation standard for comparison, and can also be used to optimize the comparison route and shorten the comparison time.
孟涛, 王池, 邢超. 基于主成分分析的流量装置比对传递标准稳定性研究[J]. 计量学报, 2019, 40(5): 823-828.
MENG Tao, WANG Chi, XING Chao. Study on Transfer Standard Stability of Flow Facilities Comparison Based on Principal Component Analysis. Acta Metrologica Sinica, 2019, 40(5): 823-828.
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2019, Vol. 40 
