The objective of the GoldPic 3 project is to detect coins and jewelry in shallow water and on the beach by optimizing the timing and circuitry for detecting small items. Using readily obtainable low ...

Which underwater metal detector is best? Whether you dream of finding lost treasure or are simply looking for a fun new hobby, metal detecting may be the answer. Not only can it be profitable, but ...

If you think of a metal detector, you’re probably thinking of a fairly simple device with a big coil and a piercing whine coming from a tinny speaker. [mircemk] has built a more modern adaptation.

Many marine service companies are acquiring boat-towed metal detectors and magnetometers to assist in salvage operations and geophysical surveys. These devices can locate a variety of targets ...

A metal detector used to be an entirely analogue instrument, an oscillator whose frequency changed with the inductance of its sense coil when a piece of metal approached. [Łukasz Podkalicki] shows us ...