Development and Uncertainty Evaluation of New Piston
새로운 개념의 피스톤 푸루버 개발 및 불확도 평가
- Published : 2002.12.01
Abstract
The new piston prover was developed and the flow measurement uncertainty of this piston prover was evaluated according to ISO/IEC 17025. The laser interferometer was employed to measure accurately the testing time. Uncertainty was calculated with evaluation of various uncertainty factors affected in flow measurement. The expanded uncertainty(U) of the piston Over was