Types of metal detectors vary according to a range of hopes and technical features and different classifications,
for example, according to the search technology or depth of search or the technology of the device or tool used
to conduct the search or detection.
Table of Contents
There are many types of metal detectors, here in this article, we will see the details….
A metal detector is an electronic device specially designed to detect buried underground metal objects
such as the treasures of gold, archaeological treasures of ancient civilizations, and various kinds
of precious and non-precious metals.
Metal detectors are used by prospectors and treasure hunters.
They help detect any metal object under the ground for varying depths depending on the device.
This enables the prospector to find all metallic objects such as gold ornaments, statues, ancient coins made of gold, silver, or copper, and so on.
Metal detectors are very diverse. so there are many types of metal detectors that are classified according to different classifications.
Metal detectors can be classified according to their uses or according to the search system
and the technology in the device or according to other factors.
But the most commonly used classification is according to the search technology of the device,
where metal detectors are classified into several types will be reviewed by the following paragraph
Types of Metal Detectors
Electromagnetic Metal Detectors
Electromagnetic metal detectors are operated according to one of two search technologies. :
very low frequency (VLF) or pulse induction technology (PI) which depends on a search coil used to
detect the presence of different metals, including gold within the search area below the coil
and then it gives an alert to the user in the form of audio tone according to certain tones depending on the type of metal.
These devices have a limited scope of depth (maximum : 3 meters) and relatively cheap prices
however, It is the most widespread device in the world especially for beginners
Examples: Gmt 9000, Impact Pro, Pulse Nova
Long-Range Metal Detectors
The long-range metal detectors use search antennas to receive target signals
buried underground remotely. These devices are characterized by a very wide field
of scan and huge search depths compared to other types of metal detectors
Long-range devices are easy to use and filter the search results and search within large distances
and large areas with the possibility of estimating depth
Examples: Gold Star, Cobra GX 8000
3D Imaging Metal Detectors
3D Imaging metal detectors are devices that use special probes for ground scanning.
Then the scan results are usually displayed on a computer screen or Tablet in a three-dimensional diagram
showing the structure of the ground in the search area and the targets buried in it.
However, these devices are characterized by high accuracy and coverage of a wide field of scan and multiple features
that ensure accurate results for the prospector and professional searcher.
Examples: Nokta Invenio Pro, OKM EXP 6000, OKM Ground Navigator, and Phoenix
Multi-Systems Metal Detectors
There are some metal detectors devices that may contain more than one search system
however, it uses different technologies within a single device and this gives the prospector multiple
Search options are used for different applications or to confirm the results of other search systems.
Example: Gold Star 3D Scanner includes 8 search systems:
– 8 search systems for all metal detection applications including:
Manual Sensing System – Controllable Sensing – Automatic Sensing System – Ionic System
Bionic System – 3D Ground Scan System – Live Stream Scan System – Pinpointer Target Positioning System