METHOD FOR OPERATING A METAL DETECTION SYSTEM AND METAL DETECTION SYSTEM

摘要

The method serves for operating a metal detection System that comprises a balanced coil System (2) with a transmitter coil (21) that is connected to a transmitter unit (1), which provides transmitter Signals (s1) having a selectable transmitter frequency (f TX) and with a first and a second receiver coil (22, 23) that provide Output Signals (s22, s23) to a receiver unit (3), which compensate one another in the event that the metal detection System is in balance and, in the event that a product ( P) is present in the balanced coil System (2), provide an Output Signal that is forwarded to a Signal processing unit, which suppresses at least the components of the product Signal and delivers the Signal components caused by metal contaminant contained in the product ( P).