Metal Detector Circuit: Simple and Effective
Metal Detector Circuit: Simple and Effective Metal detectors are widely used for detecting metal objects beneath the surface, whether for security, treasure hunting, or scientific applications. This simple metal detector circuit is easy to assemble and can be a great DIY project for electronics enthusiasts. Components Required: 555 Timer IC Inductor Coil Capacitor Resistor LED Transistor Battery Working Principle: The circuit works based on the principle of induction. The metal detector coil generates a magnetic field, and when metal objects come in close proximity, they disturb the magnetic field. This disturbance is detected by the circuit, triggering an LED or alarm. Construction: 555 Timer IC Configuration: The 555 timer is configured in astable multivibrator mode. It oscillates to generate a high-frequency signal, which is fed to the inductor coil. Inductor Coil: The coil generates the electromagnetic field when current flows through it. When a metal object is nearby, it a...