https://cdn.seriousdetecting.com/wp-content/uploads/2013/10/ConcentricCoil.gif 155 372 Ewout Kozel https://cdn.seriousdetecting.com/wp-content/uploads/2013/09/sdlogo.png Ewout Kozel2012-04-01 20:52:542012-03-16 20:53:29Concentric coil
A Concentric coil has an inner circle and an outer circle wire winding. The search pattern is cone shaped and can be useful for accurately pinpointing targets. Concentric coils require more sweep overlap for thorough ground coverage. They are also noisier in highly mineralised ground and therefore might not be the best choice for gold prospecting.