论文部分内容阅读
一、前言本文所介绍的标定激波管,专用于压力传感器作动态性能标定。由标定激波管试验可以得到压力传感器的上升时间、过冲比、自振频率、阻尼比和动态灵敏度等参数。测压管道和二次仪表的动态参数,也可由标定激波管试验获得。国内现有的一些标定激波管多数是7～8米长的大设备。最近我们研制了一台袖珍台式标定激波管,总长仅2米,具有占地小、投资少、用气省、操作方便和实验周期短等优点。
I. Introduction This article describes the calibration shock tube, dedicated to the pressure sensor for dynamic performance calibration. The calibration shock tube test can get the pressure sensor rise time, overshoot ratio, natural frequency, damping ratio and dynamic sensitivity and other parameters. The dynamic parameters of the pressure measuring pipe and the secondary instrument can also be obtained from the calibration shock tube test. Some of the existing calibration of the majority of shock tube 7 to 8 meters long large equipment. Recently, we developed a pocket-sized benchtop calibration shockwave tube with a total length of only 2 meters, which has the advantages of small footprint, low investment, gas consumption, convenient operation and short experimental cycle.