EM34-3 Electromagnetic Meter

Using the same inductive method as the EM31-MK2, the EM34-3 Electromagnetic Meter uses three intercoil spacings:

• 10 M
• 20 M
• 40 M

These different lengths in spacing provide variable depths of exploration down to 60 meters. With three intercoil spacings and two dipole modes (horizontal as shown, and vertical) at each spacing, vertical soundings can be obtained. In the vertical dipole (horizontal coplanar) mode, the EM34-3 is very sensitive to vertical geologic anomalies and, as a consequence, is widely used for groundwater exploration in fractured and faulted bedrock.