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本文对转子后总温、总压测量所共有的一些测量误差进行了分析讨论,着重解决了下列问题:1.采用扫描积分法导出了一阶系统对矩形波的旋态误差方程,使转子后的测量误差能有一个比较清晰的理论轮廓。同时也为旋态误差的估算提供了具体的方法和公式,2.简述了气动堵塞的机理和气动堵塞比的一种新的定义,给出了涡轮转子后堵塞误差与气动堵塞比的实验曲线,3.探讨了减小转子后测量误差的方法。
In this paper, some common measurement errors of total rotor temperature and total pressure are analyzed and discussed, and the following problems are mainly solved: 1. Using the integral of scanning method, the error equation of the first order system to the rectangular wave is derived, The measurement error can have a clear theoretical outline. At the same time, a specific method and formula are also provided for the estimation of the rotation error.2. A new definition of the mechanism of pneumatic jamming and the ratio of pneumatic jamming is briefly described. The experiment of the post-jamming error and the pneumatic jamming ratio of the turbine rotor is given Curves, 3. Methods to reduce measurement error after rotor are discussed.