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Publications (2 of 2) Show all publications
Jonas, S., Kumme, R., Falk, T., Davood, M., Miha, H., Wozniak, M., . . . Gerber, S. (2023). Strategy report for offering traceable calibration for testing machines under continuous and dynamic forces.
Open this publication in new window or tab >>Strategy report for offering traceable calibration for testing machines under continuous and dynamic forces
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2023 (English)Report (Other academic)
National Category
Mechanical Engineering
Identifiers
urn:nbn:se:ri:diva-71212 (URN)10.5281/zenodo.7866831 (DOI)
Available from: 2024-01-24 Created: 2024-01-24 Last updated: 2024-02-06Bibliographically approved
Amer, E., Wozniak, M., Jönsson, G. & Arrhén, F. (2021). Evaluation of Shock Tube Retrofitted with Fast-Opening Valve for Dynamic Pressure Calibration. Sensors, 21(13), Article ID 4470.
Open this publication in new window or tab >>Evaluation of Shock Tube Retrofitted with Fast-Opening Valve for Dynamic Pressure Calibration
2021 (English)In: Sensors, E-ISSN 1424-8220, Vol. 21, no 13, article id 4470Article in journal (Refereed) 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.

Place, publisher, year, edition, pages
MDPI, 2021
Keywords
dynamic pressure, shock tube, fast-opening valve, repeatability
National Category
Fluid Mechanics and Acoustics
Identifiers
urn:nbn:se:ri:diva-55130 (URN)10.3390/s21134470 (DOI)
Available from: 2021-07-02 Created: 2021-07-02 Last updated: 2024-03-25Bibliographically approved
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ORCID iD: ORCID iD iconorcid.org/0000-0002-9144-5851

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