压力传感器过冲量δ的测量及其在动压测量中的应用

阐述了影响压力传感器过冲量6的因数及其测量方法，指出：当输入信号上升时间大于0．02π／ωd时，压力传感器的过冲量是随输入信号上升时间变化的不定量，用激波管端面安装的方法测得的过冲量是压力传感器的最大过冲量；不是所有动态压力测量场合都需要考虑压力传感器过冲量的影响；压力传感器的过冲量应该按照实际工作状态进行标定。

The Measuring and Using of overshoot(δ)of Pressure Sensor

The factors which effect the overshoots of pressure sensor and its measurement method are described, and pointed out that the overshoot is affected by the rising time of input signal when the rising time tr 〉 0.02π/ωd, and it is the largest one when the overshoot is measured by the end-wall sensor mounting shock tube , it must be calibrated according to the working states of pressure sensor when the effect of overshoot should be considered in the measuring of pressure.