Metal detectors are used to find metal objects buried in the ground or hidden inside other objects. They have been around for centuries, but they were not always commonly used. In this blog post, we will explore the history behind these handy devices and how they have changed throughout time.
Metal detectors were invented by a German physicist named Alexander Graham Bell. He is best known for inventing the telephone, but he also had other hobbies and interests such as archaeology.
Metal detectors became popular in World War II when they were often used to find landmines that soldiers might step on and explode. They have been widely adopted since then due to their accuracy and ease of use compared with older devices like dowsing rods or metal probes which required more time and manual work from the user to produce results.
However, even though these are easy enough to operate now, many people do not know how their operation works so will only purchase them through trusted retailers who offer warranties just in case something goes wrong.
Nokta Makro metal detectors operate by emitting electromagnetic waves which are then reflected in the device when they hit a metal object or other material that can conduct electricity like saltwater, water, soil, and more.
The signal is displayed in one of two ways, either through an audio speaker which emits different pitches based on how close something is to the detector (this method works over longer distances) or through visual display using LEDs. This type requires shorter ranges but gives better detail about what has been detected since it will show exactly where the potential target was found for the person operating the machine.
As you can imagine, early metal detectors were not very powerful. They would typically only find large objects like coins or weapons buried below the surface of the ground (or hidden in a bag). This is because they usually rely on induction to detect metal rather than electromagnetic radiation which works better for more modern versions.
The first recorded discovery with one of these devices was made by none other than Alexander Graham Bell himself! He discovered an iron nail inside his pocket using a rudimentary device he had created back in 1877! However, it wasn’t until 1938 that Paul Lecornu used this technology to detect landmines during WWII and save countless lives.
Nowadays some fantastic technological advances are being made in the world of metal detectors. They are much more sensitive, can detect metals that were never possible to find before (like gold or diamonds) and there is even one available for smartphones!
f you want to learn more about this fascinating technology be sure to check out our blog posts on specific types of devices including underwater metal detectors, pulse induction units, and home use models. We hope you enjoyed reading this post as much as we did writing it!
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