How to buy underground metal detectors,
how to choose one of the most suitable detectors in a wide variety of detector products with different prices? There are many factors, in fact, is to buy a metal detector to buy a camera is very suitable, such as some people want to use simple, can choose a fool, some people want more pixels, more complex functions to meet their professional needs, you can choose the price of imported high-end products. The probe also is such, some people only occasionally use, hope has the advantages of simple operation, you can choose an ordinary type products, if the pursuit of deeper detection range, higher ability to identify metal, metal species display depth, and so on, it is recommended to choose to buy high-end imported products.
The first question many customers ask about the depth of detection is whether there is a detector that detectable 6 meters. First of all, you will need to determine whether you really need such a detection depth detector, to detect many metal objects buried in the underground, such as old burial goods actually does not exceed 1 meters. For archaeological demand, the depth requirement is very large. Because any items that can be detected are of high value, so the requirement of metal discrimination is not high. The demand for mineral exploration, many gold is open, with particles or block distribution on the ground 1~ about 15 cm on the surface, such professional needs, needs no depth, but the accuracy and sensitivity of the detector, discrimination, this needs to be done to ensure that any one gold will not be missed.
In the field of archeology, most of the evidence is metal, such as guns, ammunition, bullet guns and shells, bullets, shrapnel and / or sword, what specific evidence depends on the battle of the historical period. Therefore, it is the most important tool for the archaeologists in the battlefield.
For decades, metal detectors have been reproached. Until 1983, Richard Fox and later Douglas Scott (Douglas Scott) analyzed the analysis of the battle of little Jiao Jiao, and proved that, through systematic metal detection, decades of hard archaeological work can be completed in a very short time. According to their estimates, the metal explorer in the small corner of the battlefield excavated 5000 ancient objects, by the traditional way may only find about 10 of them.
Today, skilled metal explorers work together with archaeologists and cultural relics protectors, playing a very important role in battlefield archaeology. Cultural relic guardians are responsible for accurately recording the location of artifacts, and "packaging, labeling and marking". In other words, every ancient object is encapsulated, labeled, placed in the hole excavated when it is excavated, so that it can be removed and used to identify its precise location and map before being studied.
Metal detectors are more and more used to assist SPR (Surface Penetrating Radar) and other ground penetrating radar systems. The SPR system, originally developed by the UK (Britain) and used to detect plastic landmines, could be able to locate abnormal objects below 30 meters. The system can also provide a series of clues to help users identify not dig out the evidence.