Vlf Metal Detector Circuit

Phase shift provides vlf based metal detectors with a capability called discrimination.

Vlf metal detector circuit. This is the vlf receiver circuit that i ve upgraded and modified it senses ac fields lightening and even receives ship and aircraft radio too. Diy sensitive vlf metal detector with smartphone detects a small metal coin at 25 cm and pot lid at 1m distance. Just follow the tutorials step by step and if you have any questions contact us. I ve even used a gravity wave detector circuit added to it and also other experimental circuits.

This metal detector is able to detect. This metal detector is based on an arduino microcontroller and a smartphone. Vlf detectors usually operate at a frequency in the range of 3khz 30khz. Vlf is today the most common metal detector and the one that works best as an all round detector.

For example a small metal coin or gold ring can be found at a distance of up to 25 cm. Since most metals vary in both inductance and resistance a vlf metal detector examines the amount of phase shift using a pair of electronic circuits called phase demodulators and compares it with the average for a particular type of metal. Now this is what the circuit looks like without the upgrades and modifications. Vlf technology is a good detector that meets most detector needs.

Here you will find all the necessary tutorials. Convert your smartphone into a multi frequency vlf metal detector. And the best part is that it is very simple and can be made by anyone who has.