Metal detector is a high-tech instrument widely used in safety inspection, engineering exploration, cultural relics archaeology and other fields. It mainly uses the principle of electromagnetic induction to detect metal substances in substances. At the same time, metal detectors are also widely used in metal identification, underwater detection and other fields.

The metal detector can detect common metals such as iron, copper, aluminum, gold and silver. In addition, some metal detectors can also detect diamonds, precious stones and other precious stones. Therefore, metal detectors are also widely used in gemstones, jewelry and other fields.

In addition, metal detectors can also be used in underground metal detection, geological exploration, pipeline detection and other fields. In building engineering, metal detectors can help engineers to detect hidden engineering materials such as pipes and wires, and improve work efficiency and safety.

Metal detectors also play an important role in the field of archaeology. It can help archaeologists to detect cultural relics, gold and silver utensils and other valuables buried underground, and provide an important basis for archaeological research.

In a word, metal detectors play a wide role in modern society. With the continuous progress of technology, the application scope of metal detectors will continue to expand, bringing more convenience and benefits to people's lives and work.