An efficient metal detector allows for the localization of objects made of metal. It operates through a balanced electromagnetic system that sends waves through the detection disc. The waves can penetrate all materials, and the system emits signals depending on the metal encountered. The device may provide a visual or auditory signal depending on the nature of the metal and its volume.
To choose the right detector for one's needs, it's necessary to consider several points:
- the detection depth;
- the ground balance adjustment mode;
- the discrimination system.
The choice of a metal detector is based on the research to be conducted and the type of soil.
- the detection depth can range from 60 cm for large volume metal objects up to 2 m;
- objects with a diameter between 15 and 50 cm are detectable;
- with the ground balance adjustment mode, the detection device becomes versatile to adapt to the beach or other mineralized terrains;
- the more powerful the device, the deeper it can search. Expressed in KHz, the high power of a metal detector ensures detection of several meters into the ground.
Whether for beginners or professionals, it's important to favor a metal detector that is easy to use. Options and settings can vary depending on the types of expeditions and the nature of the terrain:
- fields;
- forests;
- garden;
- building;
- beach.
The price of a metal detector varies depending on the model and range chosen. Available in different forms, metal detectors are exploration devices that require certain techniques.
For beginners, automatic detectors are recommended. Moreover, the use of these devices is regulated by law to prevent destruction of archaeological resources. In some cases, research requires the permission of the landowners.
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