How to Make a Simple Metal Detector Circuit Using IC CS209A
on Friday, March 8, 2013
The principle of operation of the proposed metal detector circuit is quite basic yet very interesting. The detecting function is triggered by sensing the decrease in the Q level of the LC network associated with the circuit in the presence of a metal at a specified proximity level. Basically the built-in oscillator of the IC CS209 is made functional with the inclusion of a parallel resonant LC
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