中文摘要：

为使双极-偶极激电测深装置更好地用于生产实践,设计了滚动式多通道双极-偶极激电测深观测系统。借助激电测深二维有限元模拟程序,对比分析了双极-偶极装置与常规偶极-偶极装置的信号强度、分辨率和勘探深度,发现双极-偶极装置在信号强度和勘探深度方面优势明显,并且分辨率几乎没有降低;采用最小二乘拟合法,研究了双极-偶极装置数据点的记录规则,确定了记录点与极距系数和偏移系数之间的近似函数关系;通过模型测试结果表明,采用本文数据点记录规则能够较好地刻画双极-偶极装置的激电异常形态,便于定性解释分析,减少解释误差。

英文摘要：

In order to make better use of bipole-dipole IP sounding device in production, a rolling multi-channel bipole-dipole IP sounding system is developed. First of all, using 2D finite-elements IP sounding modeling rou-tine ,we analyzed its signal strength, resolution and prospecting depth, indicating that the bipole-dipole device is superior to the dipole-dipole device in signal strength and prospection depth while its resolution is as well as the dipole-dipole device. Then, we studied the data record rule using least square method, and get the record-ing position as an approximate function of current electrode spacing coefficient and isolation spacing coefficient. Finally, testing the function with a new model shows that the approximate function can describe IP anomaly, in-terpret qualitatively and reduce interpretation error better.