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  • 1.
    Amer, Eynas
    et al.
    RISE Research Institutes of Sweden, Safety and Transport, Measurement Technology.
    Wozniak, Mikolaj
    RISE Research Institutes of Sweden, Safety and Transport, Measurement Technology.
    Jönsson, Gustav
    RISE Research Institutes of Sweden, Safety and Transport, Measurement Technology.
    Arrhén, Fredrik
    RISE Research Institutes of Sweden, Safety and Transport, Measurement Technology.
    Evaluation of Shock Tube Retrofitted with Fast-Opening Valve for Dynamic Pressure Calibration2021In: Sensors, E-ISSN 1424-8220, Vol. 21, no 13, article id 4470Article in journal (Refereed)
    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.

  • 2.
    Jonas, Sander
    et al.
    PTB Physikalisch-Technische Bundesanstalt, Germany.
    Kumme, Rolf
    PTB Physikalisch-Technische Bundesanstalt, Germany.
    Falk, Tegtmeier
    PTB Physikalisch-Technische Bundesanstalt, Germany.
    Davood, Mirian
    PTB Physikalisch-Technische Bundesanstalt, Germany.
    Miha, Hiti
    ZAG, Slovenia.
    Wozniak, Mikolaj
    RISE Research Institutes of Sweden, Safety and Transport, Measurement Technology.
    Andy, Knott
    NPL, UK.
    Vavrecka, Lukas
    CMI, Czech Republic.
    Haldun, Dizdar
    TUBITAK UME, Turkey.
    Bulent, Aydemir
    TUBITAK UME, Turkey.
    Soares, Oliveira Rafael
    INMETRO, Brazil.
    Renato, R. Machado
    INMETRO, Brazil.
    Nitschke, Arnd
    USTUTT, Germany.
    Gerber, Siegfried
    USTUTT, Germany.
    Strategy report for offering traceable calibration for testing machines under continuous and dynamic forces2023Report (Other academic)
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