首先利用数值模式匹配方法分别考查存在金属芯棒和介质芯棒时的测井响应；然后计算直耦信号对消所需要的接收线圈的匝数比；最后研究频率、收发线圈距及两接收线圈距对ＡＩＴ阵列感应测井成像仪中线圈系单元的径向探测深度和纵向分辨率的影响。这些结论可为ＡＩＴ阵列单元的设计提供理论依据。 First, the numerical model matching method is used to examine the logging response of the metal mandrel and the dielectric mandrel respectively. Then the turns ratio of the receive coil required by the direct-coupled signal cancellation is calculated. Finally, the relationship between the frequency, the receive / transmit coil distance and the two receive coils Impact on the radial depth and vertical resolution of coil units in AIT array induction logging imagers. These conclusions can provide theoretical basis for the design of AIT array unit.