VOLUME DETERMINATION OF A VACUUM VESSEL BY PRESSURE RISE METHOD

Janez Setina, Bojan Erjavec

Abstract

A new method for determination of volume ratios and also the absolute value of volumes of vacuum vessels is presented. Method is based on a measurement of rate of pressure rise in a vacuum chamber at constant flow of inert gas. An example of measurement of a volume of a chamber with a nominal volume of 7 L is presented. For pressure measurements we have used a spinning rotor gauge (SRG) and He permeation leak was used as a gas source.

Keywords

volume ratio, pressure rise, spinning rotor gauge

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IMEKO-WC-2009-TC16-632.pdf

DOI

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IMEKO TC

TC16 - Pressure and Vacuum Measurement

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