MINELAB DETECTOR COILS

COIL CONFIGURATION:

•  This refers to the shape and arrangement of the wire windings in the coil.
• There are three main types of coil configurations: Concentric, Double-D and Monoloop.
• Concentric coils have a circular transmit winding around the outside and a smaller recieve winding in the center.
• They produce a cone-shaped detection pattern and are good for pinpointing targets.
• Double-D coils have two overlapping D-shaped windings that produce a blade-shaped detection pattern.
•      They are good for covering large areas and discriminating iron targets.
• Monoloop coils have a single winding that acts as both transmit and recieve. 
•      They produce a very sensitive and deep detection pattern, but are more susceptible to interference and ground noise.

COIL SIZE: 

• This refers to the diameter or length of the coil.
• Larger coils can detect deeper than smaller coils but they have less sensitivity to small or shallow targets.
• Smaller coils can detect smaller or shallow targets better, but they have less depth. 
• The choice of coil size depends on the type of terrain, the size of the target, and the level of interference.

COIL SHAPE: 

• This refers to the outline of the coil.
• Most coils are round or elliptical, but there are also other shapes such as butterfly, semi-elliptical, or figure-8.
• Round coils are stable and balanced, and offer consistent performance in all directions.
• Elliptical coils are narrower and longer, and offer better maneuverability in tight spaces or between rocks.
• Butterfly coils are two round coils joined together, and offer better ground coverage and depth than a single round coil of the same size.
• Semi-elliptical coils are similar to elliptical coils, but have a rounded tip and tail.

COIL DESIGN: 

• This refers to the construction and appearance of the coil.
• Some coils are solid, meaning they have a plastic cover over the windings.
• Some coils are open-web, meaning they have exposed windings with a web-like frame.
• Some coils are semi-open web, meaning they have exposed windings with a partial plastic cover.
• Solid coils are more durable and waterproof, but they are heavier and create more drag in water.
• Open-web coils are lighter and easier to move in water, but they are more fragile and prone to damage.