流动湿蒸汽湿度谐振腔微扰法测量的实验研究

介绍了谐振腔材料微扰技术连续测量流动湿蒸汽湿度的原理,设计了适用于流动湿蒸汽湿度连续测量的谐振器及测量系统。与现有的热力学法或光学法测量方法相比,测量系统简单,抗污染能力强,能实现蒸汽湿度的在线连续测量。影响测量精度的因素主要是温度、压力的测量精度和谐振腔形状微扰。图4表1参10

Experimental Research on Wetness Measurement of Flowing Steam by Resonant Cavity Perturbation

The principle of measuring the wetness of flowing wet steam by means of the resonant cavity perturbation technique is presented. A resonant cavity sensor and a measureing system applicable for continuously measuring the wetness of flowing wet steam have been designed. Compared with existing thermodynamic and optical methods, the system of this method is more simple, pollution resistant and can be used for on-line wetness measurement of flowing steam. The main factors that affect the precision of measurement are the proecision with which temperature and pressure can be measured, and perturbations to which the cavity's shape may be subjected. Figs 4, table 1 and refs 10.