Detector systems are divided into VLF and Pulse. The user has to choose between the detectors recommended to him according to the features and usage area. Even if a user says to buy a VLF detector and use it everywhere, it will not work. When the advantages/disadvantages between the systems are examined, it is seen that the most used system in the world is VLF.
You basically cannot detect places with open mouths with a detector. Deep search detector models can detect underground, closed, airtight, naturally formed or artificially formed cavities within the detection distance. As with metal, it affects the depth of space in the soil structure. If the gap is not within the detection range, it will naturally not be detected by the detector. You can detect gaps with the detector. At the detection distance but not large enough to detect, then the detector will not be able to see the gap again. The larger the gap, the more deeply it can be detected.
They measure the magnetic field vectors coming from underground using magnetic sensors. The user can reach these conclusions by analyzing the measurements he made and the data he received. The basic things that the user can learn from the data received in the underground imaging products are soft soil, void, water, fill, excavated closed place, wet ground, rock, metal, structure, tunnel, cellar, etc. There is no metal discrimination, the comment made by the user after the analysis of the incoming data is important. The device shows the data it receives and the user tries to understand what is happening by analyzing the differences there. Underground imaging systems are not like detectors and field scanning. is It does not overwrite the data received from the device in this way.
For example, as of 2018, the Southeast Archeological Center - The Southeast Archeological Center "SEAC" - has volunteered users of metal detectors in five American Civil War parks, three Revolutionary War sites, the Red Stick (Indian) battlefield, and the War of 1812 area. The purpose of such projects is to help us understand history through the sequence of events and how the soldiers acted, thanks to the artifacts found. archaeological research has been carried out. These areas include Moore's Creek battlefield, King's Mountain National Military Park, Chickamauga, and Chattanooga National Military Park. The Southeast Archeology Center is the support center for the National Park Service's Southeast Region. We think that it will be useful to increase the examples of some projects, institutions and government policies on a global scale to understand the importance and seriousness of the situation. These examples show us that when technology works together with academic disciplines, missing pieces can be completed quickly.