David Marc Fishman asked: The main part of metal detectors is the control box, shaft, and search coil. Control box which has speaker, batteries, and microprocessor coordinates all activities. To protect the food source many companies use metal detectors to check for metal contaminates in the food, and some drug companies use the metal detectors [...]
Robert W. Benjamin asked: Metal Detecting for fun or profit can be one of the most exciting and rewarding of hobbies. A metal detector can cost very little, as low as $50 or higher that $400 for a top of the line model. This is one hobby where you really do get what you pay [...]
Keith George asked: As the name suggests a Metal Detector is a kind of instrument, which is used to detect metal with the help of electromagnetic induction. It helps in the detection of land mines, weapons like knives or guns at airports, in treasure hunting or in archeology. It can also be helpful in detecting [...]
Jessica Deets asked: The first metal detector was invented by Alexander Graham Bell in the year 1881, just after the invention of telephone in 1876. Later, Fischer came out with a portable one in the year 1931. Today, metal detectors are used in many fields starting from treasure hunt to security purposes. These are electronic [...]
