气体介质对激波管计量特性的影响

2018 5th IEEE International Workshop on Metrology for AeroSpace (MetroAeroSpace) Pub Date : 2018-06-01 DOI:10.1109/METROAEROSPACE.2018.8453619

Chenchen Wang, Hongbo Wang, Bo Shi

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引用次数: 1

摘要

激波管是一种常用的压力传感器动态校准装置。理论上可以产生上升时间为纳秒级的阶跃压力。通过激波管的动态校准结果，可以得到压力传感器的时域和频域特性。介绍了气体介质对激波管计量特性的影响。根据驱动段和被驱动段气体介质的不同，进行了四组试验。通过对试验结果的分析，评估了气体介质对激波管阶跃压力幅值、传递函数和标准差等特性的影响。

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Influence of the Gas Medium on the Metrological Characteristics of Shock Tubes

The shock tube is a commonly used device for the dynamic calibration of pressure transducers. It can generate a step pressure which rise time is of the order of nanoseconds in theory. The properties of pressure transducers in both time and frequency domains can be obtained from the dynamic calibration results with a shock tube. The influence of the gas medium on the metrological characteristics of shock tubes is presented. Four groups of tests are carried out according to the different gas media in the driver section and the driven section. According to the analysis of the test results, the influence of the gas medium on the characteristics contains the step pressure amplitude, the transfer function and the standard deviation of the shock tube was evaluated.

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2018 5th IEEE International Workshop on Metrology for AeroSpace (MetroAeroSpace)

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