
Minelab’s VFLEX Technology
74Understanding your X-TERRA - Technology
As a metal detector’s search coil is moved close to mineralized ground the tuned
frequency of the search coil is aected. VFLEX continuously monitors the search
coil for the eects of ground mineralization and compensates the received
signal to achieve maximum depth and consistently accurate TIDs.
Most metal detectors have the receive winding connected directly to the
cable. This means that the very small signals received by the search coil are
sent directly up the cable to the control box. Because the signals are so small
they need a lot of amplication in the control box and any electromagnetic
noise picked up by the cable also gets amplied. This results in false signals and
reduced sensitivity.
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