Volume ratio determination in static expansion systems by means of a spinning rotor gauge

Static or volume expansion systems are used to generate accurately known pressures in the high and medium vacuum range for vacuum gauge calibrations. To determine the volume ratios in such systems, different methods can be used. We have tested the method of using a spinning rotor gauge for measuring...

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Bibliographic Details
Published in:Vacuum 1999-04, Vol.52 (4), p.491-499
Main Authors: Jousten, K., Röhl, P., Aranda Contreras, V.
Format: Article
Language:English
Subjects:
Exact sciences and technology
Expansion ratio
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Physics
Spinning roter gauge
Static expansion
Vacuum apparatus and techniques
Vacuum gauges
Vacuum primary standard
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Summary:Static or volume expansion systems are used to generate accurately known pressures in the high and medium vacuum range for vacuum gauge calibrations. To determine the volume ratios in such systems, different methods can be used. We have tested the method of using a spinning rotor gauge for measuring pressures before and after an expansion for several gases and compared it with two other independent methods. The results of the volume ratios obtained with the spinning rotor gauge method were in agreement (relative differences ≤3×10 -4) with the results obtained with either of the two other methods.
ISSN:0042-207X
1879-2715
DOI:10.1016/S0042-207X(98)00337-6