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

    IF Amplifier using NE592
    Electric fence charger
    Shift register
    Precision-Increasing Buffer
    connect 4000
    44 Watt Mobile Car Stereo Amplifier
    measurement Measuring large differential voltage
    Water Activated Sensor Alarm Using 555 PCB
    Harnessing Solar Power with Smart Power-Conversion Techniques
    Project: PC Power-on Combination Lock? |? O J Ford
    wi fi interfacing with lpc2148 arm7 primer
    Hot-air Rework Station
    RF drive audio oscillator



    Top