What is Metal Detector Coil and How Does it Work?
Metal Detector Coil operate by sending an electrical current through a coiled copper wire to generate a magnetic field (this coil is called the transmit or TX coil). When this magnetic field encounters metal it induces an equal opposing current which is sampled by the receive or RX coil. At a basic level every commercially sold metal detector either works through pulse induction or very low frequency technology. Pulse induction detects metal through repeatedly allowing a high amperage electric current to...