Metal Detector Circuits

  

Circuits


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The other day when I was searching instructables I come across on interesting and simple circuit for metal detector. It is build with 555 coil and few...

Simple metal detector circuit diagram with 555 timer and applications. Metal detector is used to check the persons in theatres, shopping malls, hotels etc.

This metal detector can detect metal as well as magnets. When a piece of metal or magnet is brought close to the inductor/choke the output frequency changes and you can hear sound from the speaker....

Depending on the complexity of the circuit, a metal detector will be able to discriminate between a lump of gold and an aluminium ring-pull from a drink-can. The circuit we have presented in this p...

Read this post to get good idea about circuit diagram of metal detector. Metal detector is used to check the persons in shopping malls, hotels, etc.

negitive wire. The circuit is very simple. For assembly please follow the provided circuit diagram. Remember that the LED and metal Detector are polarity sensitive. I ask you strongly to test each ...