How are Gold Detectors distinct from other detectors?
Gold detectors usually serve the purpose of finding gold in particular, among all other metals.
Gold's characteristics and reference values place it in close proximity of other types of metals on the scale of metals. Gold Detectors are produced to offer high level of sensitivity to such reference values. The places where gold is naturally found include lands with a rich mineral content. A detector which can operate consistently on such surfaces requires advanced technology and production experience. Many detectors available in the market lack in these qualities.
The most discerning characteristic of gold detectors is the ability to ignore other elements, and focus merely on gold and related metals. In other words, the gold detectors should be able to find even a sliver of nugget covered under rocks and stones. Gold detectors should operate with consistency in the face of high mineral levels which can show up as anomalies in the soil composition, while preserving the depth and power specifications. This requires the state of the art technology, advanced engineering, and a wealth of experience.
Not only the device itself, but also its minute details from coils to cables should be the fruits of hundreds, even thousands of trials and analytical study of results.
The natural environment where gold is often found is mineral rich soil. The number of detectors which can operate consistently and effectively on such terrain is not that high. A most advanced level of technology and sensitive equipments is a must.
The most discerning characteristic of a gold detector is its ability to detect gold masses smaller than 1 gram (nugget) located even under a mineral rich stone.
This makes gold detectors stand out among others, as ordinary detectors operate on a different principle.
Producing a detector offering such features requires a robust R&D and Engineering structure, the firms which have these clearly stand out among the crowd.
The metal signals in mineral-rich soil are very high. Singling out those of gold among all the metals is harder than one would think. The technology used in such detectors is almost completely distinct.
Gold differs from other metals and magnetic materials in the environment, with its distinctive self-resistance and inductance per unit length. Therefore it has different time constants. In this vein, the surfaces where gold is found should also differ from average surfaces on these respects.
A typical treasure scanner or single coin detector is designed to offer sensitivity at a level equal to a variety of targets in an average terrain. On the other hand, gold detectors are optimized to achieve perfect detection of gold vis-a-vis the impurities which can be found in the surface scanned. Gold detectors are built on a pedestal of methods, technologies, detailed calculations and accumulated knowledge to achieve such discerning scans. The design of the detector to achieve these goals determines whether it will be able to detect gold in the terrain, or not.
For instance, the targets of treasure scanners are usually objects of relatively large mass. Detectors capable of discriminating among metals allow it to determine the metal dominant in the composition of such objects, i.e. steel, iron, or copper. As the object is relatively large, it is easier to spot, allowing even finds at deeper levels. A study of the history reveals that the treasures are found usually on lands inhabited by men, whereas gold is usually found in arid, uninhabited, rocky and mineral-rich terrains. Therefore, the use areas and targets of the detectors discussed are clearly distinct.