FIELD: sensors.
SUBSTANCE: invention relates to detectors for detecting a conductive material. Substance: detector (10) includes at least one transmitter (11) with a transmitter coil (12) and a power source (13), a receiver (14) with a receiver coil (15) and an additional receiver coil (21), structurally identical, with the same winding direction, and an analytical processing unit (16). The transmitter coil (12) is connected with the power source (13). The receiver (14) is made without an oscillation circuit, the receiver (14) is connected with the analytical processing unit (16). The analytical processing unit (16) comprises a differential amplifier (22) and a regulator connected with the differential amplifier (22).
EFFECT: ensured detection of conductive materials.
16 cl, 13 dwg
