Metal Detector Circuit Diagram. A distinctive feature of this device is the low operating frequency. Metal detector circuit diagram free download image search results with metal detector schematic circuit diagram image size 695 x 393 px and to view image details please click the image.
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One may also experiment with the frequency by changing the value of c1. Metal detector coil operates at a frequency of 3 khz. Metal detector circuit diagram as shown the circuit oscillates at around 230khz.
A faraday shield may be added to reduce ground effect and capacitive coupling and this is wired to 0v.
Block diagram of metal detector there are three main parts in the metal detector circuit. The coil and the capacitor c1 which are connected in parallel will form the lc circuit. Simple metal detector project. One may also experiment with the frequency by changing the value of c1.
