We examined the variation of the amplitude and the phase and their sensitivity functions with the conductivity and found they are all change monotonically with it.

• 井间磁场的实部、虚部随地层电导率 的变化呈明显的周期性，这会给由它们的测量资料反演 带来很大困难，所以宜将振幅和相位作为测量量。