Pulse Induction (PI) metal detectors use a method called pulse induction to detect metals. They operate by sending short, powerful bursts of electrical current through a coil, creating a magnetic pulse. When this pulse interacts with metal objects, it induces a secondary magnetic field that the detector’s receiver coil picks up. The system measures the time it takes for the magnetic pulse to dissipate, which varies depending on the type and size of the metal. PI detectors are highly effective in highly mineralized soils and are often used in deep-sea diving, treasure hunting, and detecting metal in challenging environments.
Metal detection and discrimination Unfortunately, after looking through the mountain of information, we can draw a sad conclusion – the topic has almost exhausted itself. Recently, there are almost no new patents in this area, and manufacturing companies produce clones of well-known devices. The peak of activity falls on the 80s of the last century. Another surge of …
Metal detectors dictionary The metal detection industry is full of jargon that may not mean much to someone new to the hobby (or even veterans). That’s why at Garrett, we strive to keep you informed of the latest technology, trends and features in the industry. Why do we want to keep you updated? Because we …
Search coil design Introduction In radio engineering and metal detectors technology there is such a thing: connected circuits. They come with inductive or transformer coupling. We are interested in the first. The transmitter circuit (it receives power from the generator) is called the primary circuit. Assign index 1 to it ( L1, I1, Ф1). The receiver circuit …
Casper “Каспер” is a modern microprocessor, universal pulsed metal detector. The device is designed to search for metal objects in ground, sand, walls, thick grass, etc. The principle of operation of a pulsed metal detector is based on the excitation of pulsed eddy currents in a metal object and the measurement of the secondary electromagnetic …
Andreas Gatowski’s “Schatzsuche mit Metalldetektoren” is a German language book that was first published in 1990. The book covers various aspects of metal detecting, including the history of metal detecting, the different types of metal detectors available, and tips and techniques for successful treasure hunting. The book is divided into several chapters, with each chapter …
TL12000 metal detector The TL12000 is a metal detector produced by OKM, a German company that specializes in the development and production of geophysical instruments and metal detectors. The TL12000 is a high-end metal detector that is designed for professional use in various industries including archaeology, mining, and treasure hunting. One of the main features …
Introduction Metal detectors are devices used to detect the presence of metal. They work by sending an electromagnetic field into the ground and detecting any disruptions in that field caused by metal objects. Discrimination is a feature found in some metal detectors that allows users to filter out unwanted metals and focus on finding specific …
Pulsdetektor Minipuls-3 Minipuls-3 is the highlight of the Minipuls series. This detector is analog/digital hermaphrodite. However, it can be expanded to digital 10-bit signal processing with extended software and a minimal board change. An AT90S4433 takes over the pulse, touch and display control. The display is via a 16×2 LCD in 4-bit mode. The average …
Pulsdetektor Tiny Tiny was built into a small plastic case. The batteries can be found in the cover. There is no loudspeaker at all. Possibly a beeper would still fit. The narrow layout was chosen because Tiny is also the ideal underwater detector thanks to its one-button operation. The circuit fits well into a plastic …
DIY Metal Detector based Arduino Nano Metal detector, sounds a bit high-end, below we just use an Arduino, 10 meters of copper wire, a 100 ohm resistor and a passive buzzer to make it. Detectors can be designed in various sizes and shapes as needed, the difference being the fabrication of the coils. It is …
