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.
Clone Pi AVR Metal Detector As the warm weather approaches, I decided to make this, a little more serious than the old AVT metal detector (MD). Advantages – LCD, settings can be changed, no expensive parts, more stable (than AVT) at low temperatures, easy adjustment, reaches decent depth, shows battery voltage and turns off when …
Metal detector on AVR microcontroller Empty Since ancient times, people have been attracted by devices for searching for hidden metal objects. The reasons for this interest are varied. Builders are interested in the location of metal reinforcement in the walls, treasure hunters dream of finding a jug of gold coins in the ruins of an …
Homemade metal detector Zabava-m1 This article describes the manufacture of the Zabava-m1 metal detector with your own hands. The main difference from Zabava is the location of the working generator next to the coil in the sensor, made of epoxy resin. This location allowed the connecting cable to be removed from the generator and thereby …
Assembled and boxed Clone PI AVR metal detector Some more photos of boxed Clone PI AVR metal detector and self made coil. I have made a coil from Ethernet cable between two round plywood sheets filled with Makroflex sealant. More about making coil from Ethernet cable can be fount here. Idea how to seal everything …
The “Zabava” (Metal detector on the ATTINY2313-20 microcontroller) uses the “frequency meter” principle. The metal detector operates in dynamic mode (it reacts to metal only when the sensor moves). There is a sensitivity adjustment. It distinguishes between ferrous and non-ferrous metals. Technical specifications: Supply voltage – 9V Current consumption – 17-20 mA Detection distance (in …
HOW TO PROGRAM MicroCONTROLLER FOR CLONE PI W Many radio amateurs (especially beginners) want to assemble a metal detector. At first, they assemble circuits on logic, but then it is time to master devices on microcontrollers, since they can be relatively simple with good characteristics. Here the PROGRAM MicroCONTROLLER FOR CLONE PI W. One such …
Pulse detector for metal detection Here is a simple pulse metal detector based on the A1015, JRC4585 and NE555 circuit (impulsnik-dlya-metallopoiska). Instead of the IRF740, after testing, a more powerful IRF530 was used, which works fine without any modifications. The metal detector is currently powered by a 9V battery. Pulse circuit for metal detection The …
Détecteur de métaux Bonjour les Ptits Bricoloups ! ! Pour les ceusses qui pensaient (ceux qui peuvent) que j’étais en grêve….eh bien c’est raté ! Non, je travaillais pour vous tout simplement. En 2000, j’étais Prof d’atelier à Aytré près de La Rochelle. A l’époque, les élèves travaillaient encore à l’Ecole, eh oui, et j’avais …
PIMD V2 Reworked the schematic to add an OpAmp (OPA2365). Added A0 to the signal output so I can look alternative signal processing options. This board uses an IRL540 instead of an IRF540, which reduces the MOSFET voltage drop. Here is the assembled Metal detector PIMD V2 board before testing: Two Signal Processing Approaches …
This time I will show you how to make a STM32 Pulse Indiction Metal Detector which is based on ARM STM32 microcontroller, which has significantly better features than Arduino and is also cheaper. It can detect metal coih at distance of 30cm, and big metal object at distance of more than 80 cm. The positive …
