Metal Detector
METAL DETECTOR
Metal detectors work
Metal detectors work by transmitting an electromagnetic field from
the search coil into the ground. Any metal objects targets within the
electromagnetic field will become energised and retransmit an
electromagnetic field of their own. The detector’s search coil
receives the retransmitted field and alerts the user by producing a
target response.
We connect a single copper to the circuit output so that a magnetic field is formed inside. After giving +5 or +6 Volt energy to the circuit, our circuit will work. When the circuit worked, when we threw a metal object into the copper wire we connected, the buzzer would sound and our led would light up for warning.
COMPANENTS
-2.2k, 220R Resistor
-100nF, 4.7nF, 22pF Capacitor
-50k Pot
-BC847 x2
-Buzzer
-Led
-20spr ınductor
Metal Detector
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