![]() ![]() The natural resonating frequency of the tank circuit varies with the presence of a metal in its proximity.The prototype has been developed using an easy prototyping platform, Arduino board. The project makes use of a tank circuit, in which there will be a capacitor and an inductor connected in parallel. The inductance meter is a device that can be used to measure the unknown inductance of an inductor or a simple coil. The prototype discussed here is a modified version of an inductance meter which has the ability of sensing the change in inductance and triggers an output. ![]() The basic concept used is that the presence of a metal can vary the inductance value of an inductor. This project explains the concept of detecting the presence of a metal using the method of inductive sensing. Metal detector is a device used to detect the presence of a metal in its proximity without touching it.
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