Metal Detector Circuits

  

Circuits




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

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 other components. Instructable that inspire me...

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...

The post explains a simple BFO or beat frequency metal detector circuit using ordinary components such as IC 4093.

Concealed metallic objects such as metal foils enclosed in a plastic cover, e.g., toothpaste tubes, and small objects like refill tips made of magnetic materials too can be detected using this circ...

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 a...


HOMEMADE METAL DETECTOR ~ Simple & Sensitive(Schematic)


Simple BFO Metal Detector - Improved Circuit Design


Metal Detector "Home made" first project


HOW TO DIY ONE OF THE BEST METAL DETECTOR CIRCUITS (The secrete to the Barra...