
Electromagnetic systems, including transient electromagnetic (TEM) and magnetotelluric (MT) instruments, for surface, tunnel, borehole, and mineral exploration surveys.

A transient electromagnetic exploration system for medium and deep exploration, with an exploration depth ranging from 30 to 600 meters.

A transient electromagnetic system for tunnel advance exploration, with an exploration depth ranging from 0.5 to 150 meters. It is specifically used for tunnel advance prediction.

An ultra-shallow exploration transient electromagnetic system, with a survey depth of approximately 0.5 to 150 meters, uses planar equivalent anti-flux coils to eliminate the interference of the primary field in the shallow layer, thereby clarifying the information of the shallow geological strata.

