Metal Detector Discrimination Explained (with a Garret AT Pro)
In this video I discuss the principle of a VLF- type induction balanced metal detector (Garrett AT pro), in particular how the discrimination between different metals works. I do this by looking at the emitted and received signals of a test coil, so not by opening up the detector.
00:00 General Intro
00:34 Need for discrimination / ID in metal detection
03:19 Test setup
03:55 Principle of double D coil explained
08:29 ID and phase shift for different metals (para- and diamagnetism)
It turns out that the detector measures the phase delay between the emission and reception coil. The reception coil shows this delay because of changes in the inductance which are introduced by the conductivity and intrinsic magnetic properties of metal objects in the vicinity.
Видео Metal Detector Discrimination Explained (with a Garret AT Pro) канала Huygens Optics
00:00 General Intro
00:34 Need for discrimination / ID in metal detection
03:19 Test setup
03:55 Principle of double D coil explained
08:29 ID and phase shift for different metals (para- and diamagnetism)
It turns out that the detector measures the phase delay between the emission and reception coil. The reception coil shows this delay because of changes in the inductance which are introduced by the conductivity and intrinsic magnetic properties of metal objects in the vicinity.
Видео Metal Detector Discrimination Explained (with a Garret AT Pro) канала Huygens Optics
Показать
Комментарии отсутствуют
Информация о видео
Другие видео канала
DIY DD metal detector 1 - first successSearchcoil BasicsDIY DD metal detector 2 - coin at 35cm, audio indicator, PCBDual Field Coil DIY project for PI DetectorThe BEST Metal Detector in 2021 | Top 15 Metal DetectorsMinelab SD, GP & GPX DD Coil Cable problem & RepairHow A Metal Detector WorksMetal Detector TGSL DIYMaking OLED DisplaysDIY sensitive VLF METAL DETECTOR with Smartphone (detects a metal coin at 25 cm and pot lid at 1m)How to Make 10mH Coil for Metal DetectorHow do Metal Detectors Work | How Stuff Works | How Devices Work in 3D | Science For KidsWhy is this Space Telescope so Tiny?free-PEMF - Zrób To Sam - Cewka pomarańczowaMaking a Mirror with a Variable Surface ShapeHomemade DIY Metal Detector Using Dual 555 Timer ChipTOP 5: Best Metal Detectors 2021Making Optical Logic Gates using InterferenceWorld’s Most Sensitive Metal Detector - good for tiny gold, hard rock gold and very small jewelry