Metal detectors are an electronic device used by millions of people around the world to detect metals that are somewhat close to the earth's surface. They are used for different purposes. The hobby of finding metals or gold or treasure is a favorite among millions of treasure hunters around the world. The tools used by treasure hunters and those interested in finding metals are different, but they all do basically do the same thing: they discover metal beneath the earth's surface. Metal detectors are also used at airports and are used for security in major sports and public gatherings. We can use these devices to discover mines as well as weapons, and thus metal detectors can also contribute to world security. In this article, we are going to talk more about who was involved in the invention of this device and the history of the discovery of metal detectors:
History of Metal Detector Discovery Who Invented Metal Detector?
The history of the discovery of metal detectors, after the invention of electricity dates back to the 1800s. The device was tested by gold miners as gold diggers or treasure hunters to speed up the discovery of gold, as well as by scientists to find metal on Earth. However, the use of this invention by Alexander Graham Bell had already occurred in 1881. Graham Bell was hired to find a bullet that doctors could not find in the body of President James Garfield. President Garfield was shot dead in Washington in January. However, he survived the attack. The device, which was first built, was very large in size, consisting of a vacuum tube used mainly in both World War I and World War II to locate landmines and bombs.
Figure 1_ History of metal detector discovery. Graham Bell was hired to find a bullet that doctors could not find in the body of President James Garfield.
History of Metal Detector Discovery, Gerhard Fisher
To further explore the history of metal detector discovery, in the early 1900s, metal detector founder Fisher Gerhardt worked as a research engineer in search of aircraft radio detectors. He proposed a solution to the problem of sedimentary rocks using the system used in aircraft navigation due to the changes he had made to the system, leading him to share his idea with Albert Einstein to build a portable metal detector. guided. Which eventually led to an invention.
Future developments:
The hand-held metal detector, invented by Fisher, has been in continuous development since 1925. Charles Garrett, the founder of Garrett Metal Detectors, was responsible for much of this development in the 1960s.
Garrett was looking for a metal detector that could do the job he was looking for, but could not find it. That's why he decided to make it himself, removing the oscillator thrust and advanced technology coil that he patented for himself.
Summary:
The history of the discovery of metal detectors, after the invention of electricity dates back to the 1800s. The device was tested by gold miners as gold diggers or treasure hunters to speed up the discovery of gold, as well as by scientists to find metal on Earth. However, the use of this invention by Alexander Graham Bell had already occurred in 1881.