DOUBLE PISTON PROVER USABLE AS FLOWRATE COMPARATOR FOR VARIOUS GASES

R. Kramer, B. Mickan, D. Dopheide

Abstract

For the calibration of small flowrates and for use with different gases, a novel double piston prover with a spindle-stepper motor drive has been developed.
The piston prover allows flowrates being generated with a very good reproducibility and flowrate constancy, and it therefore also makes possible the calibration of meters under test which generate a constant flowrate like critical nozzles.
By means of this principle, it was possible to realize for the first time a flowrate comparator which can also be used for the measuring of gas flows.

Keywords

flow rate measurement, primary standard, comparator principle

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PWC-2006-TC9-001u.pdf

DOI

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IMEKO TC

TC9 - Flow Measurement

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