The soil and targets is the target volume so TV includes minerals, salts, refined iron, and contaminations such as fertilizers, anything that is conductive. The target volume with refined iron and other metals is very low on the conductive scale compared to metals. A detector does not have to be in motion to reject the soil which is often called ground balance. A major factor of the soil is a relatively constant conductive volume.
A way to see the soil volume is to compare it to our finger print. No one has the same finger print but finger prints have a recognizable image so we know it is a finger print. The electronics recognize the conductive volume as soil. When the coil moves the soil volume is constantly changing. The coil never sees the exact same soil volume but recognizes it as a changing soil volume. The electronics has an instantaneous soil volume, and a historical soil volume. These two parameters are used as a prediction of future soil volume. An important key is the constant changing soil volume compared to an abrupt change in the volume when a metal target is detected.
If the soil volume contains metal targets then this greatly increases the complexity of the soil volume so we call this the target volume which includes the soil as I indicated above. Target volume is the entire matrix that is detected by the coil at any instant in time. The image of the target volume is never the same just as the example of no finger print being the same. The targets are mixed in the soil volume in all shapes and sizes, at various depths, angles to the surface of the bottom of the coil and electromagnetic footprint of the detectors coil pattern. This complex target volume is analyzed to pick targets signals out to be process and identified based on impute form the user.
Think of this matrix as a continuous pattern down to about 12
A way to see the soil volume is to compare it to our finger print. No one has the same finger print but finger prints have a recognizable image so we know it is a finger print. The electronics recognize the conductive volume as soil. When the coil moves the soil volume is constantly changing. The coil never sees the exact same soil volume but recognizes it as a changing soil volume. The electronics has an instantaneous soil volume, and a historical soil volume. These two parameters are used as a prediction of future soil volume. An important key is the constant changing soil volume compared to an abrupt change in the volume when a metal target is detected.
If the soil volume contains metal targets then this greatly increases the complexity of the soil volume so we call this the target volume which includes the soil as I indicated above. Target volume is the entire matrix that is detected by the coil at any instant in time. The image of the target volume is never the same just as the example of no finger print being the same. The targets are mixed in the soil volume in all shapes and sizes, at various depths, angles to the surface of the bottom of the coil and electromagnetic footprint of the detectors coil pattern. This complex target volume is analyzed to pick targets signals out to be process and identified based on impute form the user.
Think of this matrix as a continuous pattern down to about 12