Underground metal detectors

TC-91
TC-91-type metal detectors is my companies introduce advanced foreign technology and use imported components production of a new product. Metal detectors are used to detect and identify the main buried underground or hidden within other medium of metal. Apart from the military for its mine detection but also widely used:
Customs inspection and safety check;
The public security departments cracked Interpol search;
Detection of raw materials, fuel, metallic foreign body in food;
Check mail, baggage and parcel of metal objects;
Scrap metal recycling;
Exploration iron, prospecting, archeology;
Found buried underground metal artifacts and gold and silver treasures.
Metal buried underground, we must, through thick layers to detect, because the soil is a mixture of all kinds of minerals, they will
The metal detector signal, this phenomenon is called "mineralization reaction." Formation of the complex structure in place, "mineralization response" is a big, it could signal caused by metal mask off target signal, but it will also create false impression. Metal detectors used the old people have the experience, when the apparatus of the probe near the ground, there will be a signal, with the key in the probe ground surfaces, the signal also followed changes in the probe near the mound, stones, bricks will be audible, and this is "mineralization reaction". Because of this, only in the old-style metal detectors on the ground or in shallow soil exploration larger pieces of metal, buried deep under the ground on the metal target is powerless.
TC-91-type metal detectors used advanced to balance conditioning systems, we only strobe signal by the metal needs to eliminate all other debris caused by signal, only at metal targets in the probe when issued beep, so to effectively eliminated unpleasant "mineralization response", greatly improving the detection apparatus depth and accuracy.