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http://dx.doi.org/10.5293/KFMA.2003.6.2.047

Development and Uncertainty Evaluation of Piston Prover  

Choi, Hae-Man (한국표준과학연구원 유체유동그룹)
Park, Kyung-Am (한국표준과학연구원 유체유동그룹)
Publication Information
The KSFM Journal of Fluid Machinery / v.6, no.2, 2003 , pp. 47-53 More about this Journal
Abstract
The piston prover was developed and the flow measurement uncertainty of this piston prover was evaluated according to ISO/IEC 17025. The laser interferometer, instead of the optical sensors used in the typical provers, was employed in this prover to measure accurately the testing time and the moved distance of the piston. Uncertainty was calculated with evaluation of various uncertainty factors affecting flow measurement. The expanded uncertainty (U) of the piston prover was $1.3{\times}10^{-3}$ (at the confidence level of $95\%$). This evaluation example will be useful in the flow measurement uncertainty determination of other gas flow measurement system.
Keywords
Piston Prover; Uncertainty; ISO/IEC 17025;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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