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提出一种超短波（ＣＤＢ）含水率计的高含水理论模型。在测量条件下，当水为连续相时，ＣＤＢ传感器内流体中的传导电流超过位移电流而居于优势地位。在泡状流、高含水时，等势面应为绝缘层及覆在其上的油形成的绝缘区与矿化水的分界面。因此，传感器主要敏感于碰撞到内电极绝缘层上的油滴，而对于不接触内电极的油滴，传感器的响应要小得多。文中还分析了矿化度和温度对会水率测量的影响。
A high water cut theoretical model of the ultrashort wave (CDB) moisture meter is proposed. Under the measurement conditions, when the water is a continuous phase, the conduction current in the fluid in the CDB sensor exceeds the displacement current to occupy the dominant position. In bubbly flow and high water content, the equipotential surface should be the interface between the insulating layer and the mineralized water formed by the insulating layer and the oil coated thereon. Therefore, the sensor is primarily sensitive to oil droplets impinging on the internal electrode insulation, and the sensor responds much less for oil droplets that do not contact the internal electrode. The paper also analyzes the degree of salinity and salinity on the water rate measurement impact.