Diaphragmless shock tube for primary dynamic calibration of pressure meters

Authors

  • A. Svete University of Ljubljana Faculty of Mechanical Engineering Ljubljana
  • J. Kutin University of Ljubljana Faculty of Mechanical Engineering Ljubljana

DOI:

https://doi.org/10.21014/acta_imeko.v9i5.990

Abstract

In conventional shock tubes with a diaphragm many effects related to the burst of the diaphragm can influence the shock formation and thus prevent an ideal pressure step change predicted by the shock tube measurement model being generated. This paper presents a newly developed diaphragmless shock tube, in which a diaphragm is replaced with a quick-acting pneumatic valve. The developed shock tube has a capability to generate pressure steps calculable from its measurement model with a relative expanded uncertainty of less than 0.025, which can be used as the input signal in primary calibrations of pressure meters.

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Published

2020-12-31

Issue

Vol. 9 No. 5 (2020): Special issue for TC3, TC5, TC16 and TC22

Section

Conference Submissions

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