介绍了阻抗式含水率计的测量原理 ,采用该仪器做了模拟井动态实验 ,得出了内径分别为 13 ,2 0 ,3 0mm三种流道的阻抗式含水率计仪器响应值 ,对不同流道下的实验结果分别从滑脱速度影响、含水率测量范围、分辨率等方面进行了对比分析 ,结果表明三种流道的阻抗式含水率计可用于两相动态分析 The measuring principle of the impedance water content meter is introduced. By using this instrument, the dynamic performance of the well is studied. The response of the impedance moisture content meter with 13, 20 and 30 mm ID flow channels is obtained. The experimental results under the runner are compared respectively from the effects of the slippage speed, the measuring range and the resolution of the water content, and the results show that the impedance moisture content meter of the three flow channels can be used for two-phase dynamic analysis