Yacca Takes You on a Journey to Learn About Metal Detectors

June 19, 2024 By youyi@fishing-battery.com 0

If you are interested in metal detectors, whether you are a beginner or have already been enjoying this hobby for a while, you might want to learn about the history of metal detectors. The origin of metal detectors can be traced back to the late 19th and early 20th centuries when scientists and engineers began researching and developing devices to detect underground metals. Here are some key milestones in the history of metal detector development.

The early development of metal detectors

In the early 19th century, Michael Faraday discovered the phenomenon of electromagnetic induction, which is the theoretical foundation of metal detection technology. Faraday’s research showed that when a conductor moves through a magnetic field, it generates an electric current within the conductor. This discovery provided the scientific basis for the later invention of metal detectors.
In the late 19th century, Alexander Graham Bell designed a primitive metal detector to help locate the bullet in the body of the assassinated U.S. President James Garfield. This device used the principle of electromagnetic induction. Although it ultimately failed to find the bullet due to interference from the metal springs in the mattress, it was an early prototype of modern metal detectors.

The birth of modern metal detectors

In the early 19th century, Michael Faraday discovered electromagnetic induction, which is the theoretical basis of metal detection technology. Faraday’s research showed that when a conductor moves in a magnetic field, an electric current will be generated in the conductor, so this discovery provided the scientific basis for the invention of metal detectors. In the late 19th century, Alexander Graham Bell designed a primitive metal detector to help find the bullet in the body of assassinated US President James Garfield. This device used the principle of electromagnetic induction, and although it failed to successfully find the bullet due to interference from the metal of the spring mattress, it was an early prototype of the modern metal detector.

Post-war development and commercialization

In the 1950s, metal detectors began to enter the civilian market, mainly used for treasure hunting, archaeology and industrial detection. With the advancement of technology, metal detectors have become more lightweight, accurate and versatile. In the 1970s, metal detectors based on different principles appeared, such as pulse induction (PI) and very low frequency (VLF) technology. These technologies have significantly improved the detection capabilities of metal detectors in different environments, and their application range has become wider. They are very sensitive to small objects such as gold nuggets, and can detect 10 inches of coin-sized objects. Most detectors also have good recognition circuits that can exclude iron, foil and many unwanted “junk” objects.

The development of modern metal detectors

Entering the 21st century, with the development of digital application technology, the application of digital technology and microprocessors has made metal detectors more intelligent. Modern metal detectors can identify different types of metals more accurately and have data recording and analysis functions. Today, metal detectors are widely used in many fields such as security, archaeology, treasure hunting, industry and military. Its technology is also constantly innovating and developing, such as multi-frequency technology, underwater detection technology and the development of portable intelligent detectors.