Single chip metal detector circuit


Posted on Feb 5, 2014

This is a simple single chip metal detector circuit based on IC CS209A from the Cherry Semiconductors. A 100uH coil is used to sense the presence of metal. The IC CS209A has a built in oscillator circuit and the coil L1 forms a part of its external LC circuit which determines the frequency of oscillation. The inductance of the coil change in the p


Single chip metal detector circuit
Click here to download the full size of the above Circuit.

resence of metals and the resultant change in oscillation is demodulated to create an alarm. The LED gives a visual indication too. This circuit can sense metals up to a distance of few inches.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Accurate-variable-gain-circuit
    FT232RL USB to Serial Adapter for PIC AVR ATMEGA ARDUINO MCUs
    Methods of Monitoring Fan Performance
    211 SET amp built
    ULTRASONIC CONTROL RECEIVER
    2Hz unsteady pulse single circuit diagram



    Top