Study on Investigation of Underground Metal Object with Transient Pulse Electromagnetic Method

In recent years the transient electromagnetic pulse method theory has been developed rapidly in the world. In this paper, we focus on an electric probe method, it has many advantages to penetrate the high resistance ability, small effecting of the random manual source of disturbances, easy construction, simple measured, high efficiency and low geological affects. Currently Transient electromagnetic pulse method is one of best means to detect underground metal. Measured by the secondary field theory [1] after the power turn off at the primary field has widely used in resource exploration and engineering investigations. So far, the transient electromagnetic pulse method has been developed rapidly and ready to be used in geophysical exploration method field.