VOLUME MEASUREMENT OF PISTON PROVER CYLINDER BY GRAVIMETRIC METHOD FOR VALIDATION OF WATER FLOW RATE TRACEABILITY AT METROLOGY LIPI

Jalu A. Prakosa, Nur Tjahyo Eka D, Bernardus H. Sirenden, Hafid

Abstract

One way to validate the volume measurement of the piston prover cylinder is using gravimetric method called water draw. The purpose of this study is to measure the volume of piston prover cylinder with gravimetric method for validation of its water flow rate measurement value and also to achieve the uncertainty target. The measurement results of piston prover cylinder volume are 92.43 litre and expanded uncertainty of 0.09 litre or 0.09% in relative. The largest contribution comes from the water mass measurement repeatability because of the possibility of evaporation and error measurement in using three-way valve as diverter. The Data collecting methods should be improved in the future.

Keywords

cylinder volume, piston prover, gravimetric, water flow rate, traceability

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IMEKO-WC-2015-TC9-214.pdf

DOI

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IMEKO TC

TC9 - Flow Measurement

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