The design is based on an opensource metal detector called Smart Hunter This Very Low Frequency VLF metal detector uses transmitter and receiver coils in so called Double D geometry
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Get Pricedeep seeking circuit diagrams Various metal detector circuit diagrams Forum for The PCB for this project is a JPG file PCB1 the final printed dimensions should be 65mm X 130mm I recommend using the photo process to create the tracks since the circuit is more or less complicated After PCB1 flip the the printed surface is the one that
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Get Pricemetal detector using a 2 pulse induction coil a block diagram of the circuit can be seen in figure 2 figure 2 block diagram of the pulse 1 metal detector the basic design of the metal detector consists of four parts as seen above these are • the power supply four ic s • the pulse generation circuit four 555 s and coil Get Price
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Get PriceHere DIP8 package CS209A taken for prototype of metal detector circuit Pin 1 OSC Adjustable feedback resistor connected between Oscillator and RF sets detection range Pin 2 TANK Connects to parallel tank circuit Pin 3 GND Ground connection Pin 4 OUT 1 Complementary open collector output When OUT 1 = LOW metal is present
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Get PriceCircuit diagram Components required • IC NE555 1no • IC TL072 1no • MOSFET IRF740 1no • Transistor BC557 1no • Transistor BC547 1no • Diode 1N4148 2 nos • Resistor 1no • Resistor 100k 1no • Resistor 1k 1no • Resistor 470k 1no • Resistor 47k 1no • Resistor 470ohm 1no • Resistor 150ohm 1no
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Get PriceMetal Detector circuit diagram As shown the circuit oscillates at around 230kHz One may also experiment with the frequency by changing the value of C1 A Faraday shield may be added to reduce ground effect and capacitive coupling and this is wired to 0V Metal detector video with a funny song
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Get Price2024 1 19 simple precision metal detector schematic circuit diagram Although the metal detector circuit with the 555 timer integration is simple it works very well According to many metal detector circuits the electronic component is not used but the coil part of the detector needs a little thin workmanship
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