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Evaluation of Shock Tube Retrofitted with Fast-Opening Valve for Dynamic Pressure Calibration
RISE Research Institutes of Sweden, Säkerhet och transport, Mätteknik.ORCID-id: 0000-0003-4853-870X
RISE Research Institutes of Sweden, Säkerhet och transport, Mätteknik.ORCID-id: 0000-0002-9144-5851
RISE Research Institutes of Sweden, Säkerhet och transport, Mätteknik.ORCID-id: 0000-0003-4385-4404
RISE Research Institutes of Sweden, Säkerhet och transport, Mätteknik.ORCID-id: 0000-0001-9309-9262
2021 (engelsk)Inngår i: Sensors, E-ISSN 1424-8220, Vol. 21, nr 13, artikkel-id 4470Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Accurate dynamic pressure measurements are increasingly important. While traceability is lacking, several National Metrology Institutes (NMIs) and calibration laboratories are currently establishing calibration capacities. Shock tubes generating pressure steps with rise times below 1 µs are highly suitable as standards for dynamic pressures in gas. In this work, we present the results from applying a fast-opening valve (FOV) to a shock tube designed for dynamic pressure measurements. We compare the performance of the shock tube when operated with conventional single and double diaphragms and when operated using an FOV. Different aspects are addressed: shock-wave formation, repeatability in amplitude of the realized pressure steps, the assessment of the required driver pressure for realizing nominal pressure steps, and economy. The results show that using the FOV has many advantages compared to the diaphragm: better repeatability, eight times faster to operate, and enables automation of the test sequences.

sted, utgiver, år, opplag, sider
MDPI, 2021. Vol. 21, nr 13, artikkel-id 4470
Emneord [en]
dynamic pressure, shock tube, fast-opening valve, repeatability
HSV kategori
Identifikatorer
URN: urn:nbn:se:ri:diva-55130DOI: 10.3390/s21134470OAI: oai:DiVA.org:ri-55130DiVA, id: diva2:1577308
Tilgjengelig fra: 2021-07-02 Laget: 2021-07-02 Sist oppdatert: 2024-03-25bibliografisk kontrollert

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Amer, EynasWozniak, MikolajJönsson, GustavArrhén, Fredrik

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