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Role of Frequency in Gold Detectors 2019

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What Frequency means in Gold detectors

Frequency means how much waves are hitting the ground emitted by the gold detector. The magnetic waves formed by a change in alternating current in the coil of the detector generates electronic waves which hit the ground and colliding with the magnetic field of another metallic object, receives the input electronic waves generating detection output.

How it is measured

It is measured in KiloHertz (KHz), which means if the frequency of your detector is, suppose a 100KHz, then 100,000 waves are hitting the ground.

Relationship of Frequency with Depth

Frequency and Depth have an inverse relationship which means if the frequency of waves hitting the ground increases, they will penetrate the ground in lesser depth. But if a lesser number of powerful waves are emitted, they will penetrate the ground comparatively deeper. 

Relationship of Frequency with Sensitivity

In contrast, frequency and sensitivity have a direct relationship, meaning if the frequency of the number of waves hitting the ground increases, it will be efficient towards detecting minor sizes of the metallic objects, increasing the sensitivity of the equipment. more And if a lesser number of waves are hitting the ground it will be more difficult to detect smaller sized object ignoring them completely or partially, resulting in less sensitivity of the equipment. 

What High Frequency means

In sum, if the gold detectors are working on high frequency of waves, they will become unable to detect objects in more depth but the sensitivity will increase as no matter how less the depth is, nothing will be ignored within that range.

What Low Frequency means

Low frequency would mean lesser number of waves hitting the ground, so they would be more powerful and go deeper into the layers of the Earth’s surface. However, it will compromise the sensitivity of the equipment as it can ignore the relatively smaller chunks of metallic objects. 

Choosing the right frequency range detectors

Depending upon your specific needs, you can choose which detectors suit you the most. Using very high frequency can cause noise in output as the equipment would become sensitive to even the metallic particles in the sand which are irrelevant in terms of their value. But using extremely low frequencies would result in ignoring valuable pieces of metal. So choosing just the right amount of frequency range by using the help of technical specialists in our firm is highly recommended to make sure you buy the right equipment. 

Importance of Knowing Your Soil Mineralization For Gold Detection

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Detection is not only about the objects in focus, but it is also very much amplified or disturbed by the environment. Soil being the medium of suspension for an underground gold object, its physical and chemical properties have a strong influence on metal detection in general. Here is the most important feature of soil, soil mineralization in terms of its contents, what it means, why it is important and how it interferes. 

What is Soil Mineralization

Our Earth’s soil is enriched with many compounds whose chemical composition may suggest they are metallic or non-metallic in nature. The sum total of all compounds present in the soil accounts for the mineralization of soil which can cause a change in its physical and chemical properties. 

Why is it important

Gold detectors have a sophisticated mechanism based on detecting the metallic components in the soil through the interaction of a magnetic field generated by the current in their coil. These can be the objects we are looking for, like gold coins, gold nugget, relics, statues, etc. And these can be the objects no one is looking for, like the metallic composition of the soil particles. If the soil in some region has heavy metallic contents, they will intervene with the results of the gold detector causing unnecessary distortion.

How it Interferes

Because gold metal detectors function on detecting the metallic components buried in the ground, the shape size and distance of the objects matter as well as quantity if they are in fine form. If the soil contains particles, they are mostly in fine or powdered form. But they can be enough in quantity to produce a background noise for the detectors. in most of the cases,  they generate enough metallic field to be noticed by the changing magnetic field of the equipment because they have the capacity to absorb electric currents and generate a magnetic field of themselves. So, the metallic components are included in the natural mineralization of soil and are more likely to interfere with the results.

How it is balanced

Ground balancing is a function which many modern and relatively expensive variants of gold metal detectors come with, which is specifically designed to tackle this problem. It balances the irregular metallic component of the soil, which means the mineralization of the ground is made compatible with the gold detector settings to avoid any irregular variance in the results. Some good quality detectors distinguish between ferrous and nonferrous compounds but at a point in time, it also becomes irrelevant because the intensity of the noise becomes annoying for the person in the field. So eliminating this irrelevant beeping of the device must be minimized by maintaining ground balance.