What is a metal detector and how to detect metals?

A metal detector is a device for detecting different types of metals. In this article, we will describe metal detectors, gold detectors, and how metal detectors work.

Can a metal detector detect gold?

Gold is a metal, so the VLF high-frequency metal detector will detect gold coins and in most cases gold flakes. Metal detectors work by sending an electromagnetic field to Earth that responds to the return signal. By measuring magnetic induction and conductivity, the metal detector can determine the type of metal and sometimes how deep it is buried beneath the surface.

The difference between a normal metal detector and a gold detector

Among these differences we can mention the following:

According to tracking experts, there are two different types of devices:

Very Low Frequency (VLF) detectors, most suitable for coins, antiques and general metals.

Gold-compatible PI (pulse induction) detectors even in harsh soil conditions.

Goal frequency and size

Better gold detectors have a higher frequency of around 18 kHz and sometimes much higher.

Some examples of gold detectors:

AT Gold operates at a frequency of 18 kHz, which is very effective for gold prospecting.

Powered at 15 kHz, the At Pro is multi-purpose and gold can be found at the right settings.

The Max device operates at a frequency of 13 kHz and is compatible with coins and artifacts.

ACE 400 : It is a silver magnet with a frequency of 10 kHz.

But an ordinary metal detector usually operates at a frequency of 5 to 15 kHz.

What is the difference between a metal detector and a gold detector?

Target metals

Most gold detectors filter iron. Gold detectors often use a slightly different technology than standard detectors. This makes them great for detecting gold, but not good for non-gold.

Other differences between gold detectors and metal detectors include: differences in coil size, detection depth, weight and price.

How does a metal detector work?

A metal detector works by sending an electromagnetic field from the search coil to Earth. Each metal object (targets) gets energy in the electromagnetic field and again transmits the electromagnetic field from the inside. The detector’s search file receives the sent part and alerts the user by generating a target response.

Components of a metal detector and the work of each

Metal detector components include:

1. Control box

The control box contains the detector electronics. This is where the transmission signal is generated, the received signal is processed and converted into a target response.

2. File Search

The finder coil of the detector transmits the electromagnetic field to the ground and receives the electromagnetic field returning from the target.

3. Transient electromagnetic field (blue visual display only)

The transferred electromagnetic field activates targets for detection.

4. Purpose

The goal of any metal object is to be detected by a metal detector.

5. Unwanted target

Unwanted targets are usually iron, but they may also be non-ferrous, such as bottle caps. If the detector is supposed to reject unwanted targets, the target response will not be generated for those targets.

Components of a metal detector and the work of each

6. Received electromagnetic field (visible screen in yellow only)

The received electromagnetic field is generated from active targets and is received by the search coil.

7. Target response (visual display in green only)

When a good (acceptable) target is detected, the metal detector emits an audible response such as an alarm sound or a change in volume.

Some of the best gold detectors available in 2021

Minelab Goldmonster 1000
Garrett A.T. Gold
Nalanda MD056
Bounty Hunter TK4 Tracker IV
Fisher Gold Bogg-2
Minilab Equinox 800
Fisher Gold Big Pro metal detector
Bounty Hunter Discovery 3300

Factors affecting the depth of detection with a metal detector

A common question about metal detectors is how deep is the research?

The answer to the question of depth is the diameter of the coil. Therefore, detectors with larger coils can check deeper points for the presence of metals.

However, the depth of detection also depends on the detector technology and many environmental factors. The depth at which the metal detector can detect the target depends on various factors:

Required size

Larger targets can be detected at deeper points than smaller targets.

Target shape

Circular shapes such as coins and rings can be discovered at deeper points than thin and long shapes such as nails.

Goal Orientation

Horizontal (i.e., stagnant) currency can be detected at deeper points than vertical currency.

Required material

Metals with high conductivity (such as silver) can be detected at deeper points than low-conductivity metals (such as lead or gold).

Factors affecting the depth of detection with a metal detector

What is the difference between a metal detector and a gold detector?

A metal detector is a device that is only capable of identifying the desired metal and does not have the ability to detect whether the metal is valuable or worthless, but a treasure detector and gold is capable of detecting the value of the metal.

Gold is one of the metals, so the metal detector is able to find gold, and on the other hand, the gold detector is also able to detect various metals.

Metal detectors are primarily used by enthusiasts looking for a wide range of metals including antiques, artefacts, coins, silver and gold jewelry. A detector called a gold detector is usually designed and set up to find gold.

A regular metal detector can be used to find gold rings, jewelry and coins, which are large compared to finding natural gold such as small gold pieces and gold leaf. For the latter, you need a real gold digger.

Gold has a low conductivity compared to other metals, which means that a detector operating at a higher frequency will perform better. Real gold detectors operate at much higher frequencies (usually between 45 and 61 kHz), while recreational metal detectors usually operate at lower frequencies between 6.5 and 14 kHz.

Finally it should be noted that if you plan to buy a treasure detector and metal it is better to go to a company and not to a person.

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