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Communication

Evaluation of Shock Tube Retrofitted with Fast-Opening Valve for Dynamic Pressure Calibration

Measurement Science and Technology, RISE Research Institutes of Sweden, 504 62 Borås, Sweden
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Author to whom correspondence should be addressed.
Academic Editors: Patrick Pons and Jérome Luc
Sensors 2021, 21(13), 4470; https://doi.org/10.3390/s21134470
Received: 7 May 2021 / Revised: 8 June 2021 / Accepted: 9 June 2021 / Published: 29 June 2021
(This article belongs to the Special Issue Metrology of Shock Waves)
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. View Full-Text
Keywords: dynamic pressure; shock tube; fast-opening valve; repeatability dynamic pressure; shock tube; fast-opening valve; repeatability
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MDPI and ACS Style

Amer, E.; Wozniak, M.; Jönsson, G.; Arrhén, F. Evaluation of Shock Tube Retrofitted with Fast-Opening Valve for Dynamic Pressure Calibration. Sensors 2021, 21, 4470. https://doi.org/10.3390/s21134470

AMA Style

Amer E, Wozniak M, Jönsson G, Arrhén F. Evaluation of Shock Tube Retrofitted with Fast-Opening Valve for Dynamic Pressure Calibration. Sensors. 2021; 21(13):4470. https://doi.org/10.3390/s21134470

Chicago/Turabian Style

Amer, Eynas, Mikolaj Wozniak, Gustav Jönsson, and Fredrik Arrhén. 2021. "Evaluation of Shock Tube Retrofitted with Fast-Opening Valve for Dynamic Pressure Calibration" Sensors 21, no. 13: 4470. https://doi.org/10.3390/s21134470

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