Metal detectors invention

Metal detectors have been around since the early 1900s, but they only became popular during World War II. Before their invention, metal detectors were considered illegal and used on battlefields to locate landmines. It was during this time that these devices were used for military purposes. The first-ever patent for a metal detector was held by the Italian inventor Raimondo D’Aronco from 1897. His metal detector was the first one that measured less than one foot.

The next milestone in metal detectors history was in the late 1950s when the Israeli military first used metal detectors. The Israeli military had developed a machine that could track down landmines, explosives and wire fences in the Sinai film war in 1956. After using this machine during the war, Raimondo D’Aronco decided to patent his own and improve it further. He called his new invention the “Haitham Metal Detector” (HMD). He approached companies such as Ferranti to help end their management and development problems with this new invention. Ferranti proceeded to improve the HMD further and called it the “Ferranti Mark I.” This new invention was sold to the French government before being used by the British military in 1957.

Metal detectors as we know them today were first used during World War II for aerial applications. These devices were first used in anti-aircraft guns, but later, they were also used in search and rescue operations. The main idea behind such an invention was to save thousands of lives lost every year because of surprise bombings. During this time, Britain and France divided responsibility for monitoring these instruments. France monitored stations inside Europe while Britain covered those outside Europe, mainly in the Middle East and North Africa.

Police forces also used metal detectors to check for weapons that were smuggled in some states in America. Metal detectors became widely used during this time because they helped reduce deaths that wild dogs or unexploded bombs could have caused.


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The 1980s was a challenging time for metal detectors. During this time, companies such as Fastex decided to stop making such devices due to their poor ratings among potential customers. This declined further until the mid-1990s, when companies such as Minelab chose to revive this dying industry. After these companies had revived the industry, metal detectors received their first patent under Metal Detectors.

Modern metal detectors

Today, metal detectors are made by various manufacturers and can help detect a variety of metals such as gold, copper, iron, and even platinum. The only problem with these different types of metals is that they can appear almost identical to each other yet produce different signals. 

Metal detectors today measure less than 150 mm in length and are typically operated by a battery. You will also notice a coil inside these devices that measures between 3 and 15 cm in diameter. There is also a little plastic box which is made up of the buzzer and the reed switch. These three components are typically stuck together using a metal plate found on the device’s side. The most common metal detectors you will see today can search 1000 times faster than previous metal detector models. This means that they can detect 99 percent of all metals within 25 seconds.

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Conclusion:

Different people from different backgrounds use metal detectors for different purposes. These devices are commonly used for security checks at airports as well as in shopping malls. They are also used in concerts halls, museums and other military applications such as border patrols. Some of the main companies that make these devices include Minelab and Goldscope Australia.