Detectors are for use in various areas with reference to their purposes. The most widely found one is to search, as a hobby, for single coins, gold nugget, and treasures. In addition, ballistic detectors are used in the field of security, whereas technical detectors find ever increasing use in the field of construction. Moreover, historians and archeologists make use of detectors' services to spot the location of important finds.

These can be discussed shortly as follows:

A. The Fields of Use of Single Coin/Coin, Gold, and Treasure Scanners: The humanity had always been intrigued to uncover what is hidden. Today, intensive use of detectors made this a respectable hobby. Many people engage in this hobby by purchasing a detector. Scans for hobby and treasure hunts are performed at seaside, beaches, old settlements, soil, under rocks, inside trees, to look for hidden objects.

B) Use Cases of Security Detectors;
Today the responsibilities of security forces grow day by day. In a parallel development, timely determination of evidence and threats is becoming ever more crucial. The security forces make use of detectors to determine evidence and threats. Detectors are now musts for security forces. Detectors can be applied to the search for empty shells, bullets, knives, screwdrivers etc. weapons. Therefore, they are preferred equipments of the police, security forces, military, private security firms, and event organizers. Military units use detectors to search for mines, whereas event organizers use them to take action against potential risks by scanning at locations where crowds will gather.

C) Use Cases of Technical Detectors;
Technical detectors are often used by entities which are required to perform excavations. Manholes, rainwater grills, valves, pipes, cables under the pavement can be found using detectors. The use of detectors in this field save time, labor, and materials. Unnecessary and incorrect excavations lead to substantial losses, as well as hazards to human health. The use of detectors would save materials, labor, and time, where trial-error approach would only lead to losses and waste. Detectors are indispensable tools in all kinds of road, building, and land excavations. In developed countries, no individual or entity can engage in excavations without the use of detectors in advance. The use of detectors in the excavation site is required prior to any excavation work.

D) Use of Detectors in Archeological Sites;
Archeologists always use detectors during their excavation works. These detectors are usually used to spot tunnels, passageways, cellars, shelters, chapels, houses, rooms and other search for hollow structures, as well as to search historical objects, jewelries, and treasures. Historically important sites can be unearthed without damage, by using detectors extensively. The state-supported excavations and the treasures unearthed in such excavations are encouraged in developed countries, through auctions and displays at museums. This would help increase the amount of finds, in addition to contributing to the national economy.

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