With the development of science and technology, more and more ordinary people begin to use underground metal detectors to detect underground buried objects. However, at present, the domestic detector market is not standardized, lacking the supervision of relevant departments, and all kinds of false, exaggerated and untrue advertisements and product introductions flood the industry, which has brought great losses and confusion to ordinary consumers. So after a period of in-depth understanding of this industry, I brought this article to help you know and use underground metal detectors.

1. The British puppy made contributions by eating the metal detector of the century-old diamond ring by mistake.

According to the British "Daily Mail" reported on February 27th, a British woman became very anxious because she couldn't find a century-old diamond ring. She had no choice but to scan her pet dog with a metal detector, but she was surprised to find that the dog ate the ring by mistake and finally took it out by surgery.

2. The old house was rebuilt. Nowadays, a large number of ancient coins are excavated by villagers with metal detectors.

Most descendants of silver coin owners in the Republic of China are very calm: just give everyone a profit. That is, the silver dollar, as the saying goes, is also Yuan Datou, and now the price of one yuan is around 500 yuan.

3. British men dug up 50,000 ancient Roman coins with metal detectors.

These ancient coins are sorted and put on the table. A very important aspect of this excavation is that there are a large number of coins of Clausius, who ruled Britain independently from 286 to 293 AD.

The Englishman lost his diamond ring on the beach and found it with a metal detector.

According to the British "Daily Mail" reported on May 29, a brain surgeon in the United States carefully designed a plan to propose to his girlfriend in a special way, but there was a mistake, which made everyone sweat. Finally, I came to the beach early for the lost marriage proposal diamond ring.

5. The largest Viking treasure found in Britain includes the silver pot 1200 years ago.

In September this year, Maclennan discovered the largest Viking treasures in dumfries Church and Galloway Church, including the silver pot 1200 years ago.

6. Boys play with metal detectors and dig out pendants worth millions of pounds.

Foreign media 17 reported that James Hai Ete, a 4-year-old boy from Britain, fiddled with metal detectors for the first time and found a16th century gold box pendant, which is estimated to be worth millions of pounds.

7. Husband and wife quarreled and threw the diamond ring of 1 carat into the grass and found it with a metal detector.

The 1 carat wedding diamond ring worth more than 90,000 yuan fell into the grass, and the owner finally found it after 5 hours. Miss Wang, who lives in Wuchang, found a diamond ring yesterday. This episode before marriage deeply moved her.

To deeply understand the specific detection depth of underground metal detector, we must first understand its principle. Based on the principle of electromagnetic induction, the underground metal detector can induce eddy currents in metal objects by using alternating current to generate rapidly changing magnetic fields through coils. The eddy current will produce a magnetic field, which will affect the original magnetic field and cause the detector to sing. Generally speaking, the detector emits an oscillating electric wave, which will bounce back when it meets a metal target, and the metal also has a magnetic field. A large metal object will have a large magnetic field, and the transmission distance of the large magnetic field signal will be very long. This, in turn, means that a large metal object can go deep through the detector, while a small metal object will get a very shallow depth. Treasure hunters must understand the principle of underground metal detectors before buying, and don't blindly listen or exaggerate. At present, fake and shoddy metal detectors have been flooded in China, and most of the metal detectors in China market are fake and shoddy products, especially probe-type magnetic wave detectors. At present, Dongguan Hong Jun Electronic Technology Co., Ltd. has done a good job in this respect in the domestic market, and its products include protectors GF2 and FS22. Some detector companies cheat customers by using domestic detectors made in Japan and Germany. Originally, they were only 2-3 meters deep, but they boasted on the Internet that it was 8- 15 meters deep. For the magnetic wave detector, the detection depth depends on the size of the object, the buried age and the local geographical environment. The bigger the object, the deeper the object and the shallower the detection. The detection depth of a silver dollar is 30-60 cm, and the maximum detection depth will not exceed 6 meters. The instructions and telephone addresses of counterfeit products are false, and counterfeiters will not provide the original website. When purchasing imported metal detectors, it is necessary to identify the origin, import declaration form, original power of attorney, original CD operated by foreigners, foreign websites, foreign telephone numbers and other related procedures to avoid buying counterfeit products.

With the development of science and technology, more and more ordinary people begin to use underground metal detectors to detect underground buried objects. However, at present, the domestic detector market is not standardized, lacking the supervision of relevant departments, and all kinds of false, exaggerated and untrue advertisements and product introductions flood the industry, which has brought great losses and confusion to ordinary consumers. So after a period of in-depth understanding of this industry, I brought this article to help you know and use underground metal detectors.

1. The British puppy made contributions by eating the metal detector of the century-old diamond ring by mistake.

According to the British "Daily Mail" reported on February 27th, a British woman became very anxious because she couldn't find a century-old diamond ring. She had no choice but to scan her pet dog with a metal detector, but she was surprised to find that the dog ate the ring by mistake and finally took it out by surgery.

2. The old house was rebuilt. Nowadays, a large number of ancient coins are excavated by villagers with metal detectors.

Most descendants of silver coin owners in the Republic of China are very calm: just give everyone a profit. That is, the silver dollar, as the saying goes, is also Yuan Datou, and now the price of one yuan is around 500 yuan.

3. British men dug up 50,000 ancient Roman coins with metal detectors.

These ancient coins are sorted and put on the table. A very important aspect of this excavation is that there are a large number of coins of Clausius, who ruled Britain independently from 286 to 293 AD.

The Englishman lost his diamond ring on the beach and found it with a metal detector.

According to the British "Daily Mail" reported on May 29, a brain surgeon in the United States carefully designed a plan to propose to his girlfriend in a special way, but there was a mistake, which made everyone sweat. Finally, I came to the beach early for the lost marriage proposal diamond ring.

5. The largest Viking treasure found in Britain includes the silver pot 1200 years ago.

In September this year, Maclennan discovered the largest Viking treasures in dumfries Church and Galloway Church, including the silver pot 1200 years ago.

6. Boys play with metal detectors and dig out pendants worth millions of pounds.

Foreign media 17 reported that James Hai Ete, a 4-year-old boy from Britain, fiddled with metal detectors for the first time and found a16th century gold box pendant, which is estimated to be worth millions of pounds.

7. Husband and wife quarreled and threw the diamond ring of 1 carat into the grass and found it with a metal detector.

The 1 carat wedding diamond ring worth more than 90,000 yuan fell into the grass, and the owner finally found it after 5 hours. Miss Wang, who lives in Wuchang, found a diamond ring yesterday. This episode before marriage deeply moved her.

To deeply understand the specific detection depth of underground metal detector, we must first understand its principle. Based on the principle of electromagnetic induction, the underground metal detector can induce eddy currents in metal objects by using alternating current to generate rapidly changing magnetic fields through coils. The eddy current will produce a magnetic field, which will affect the original magnetic field and cause the detector to sing. Generally speaking, the detector emits an oscillating electric wave, which will bounce back when it meets a metal target, and the metal also has a magnetic field. A large metal object will have a large magnetic field, and the transmission distance of the large magnetic field signal will be very long. This, in turn, means that a large metal object can go deep through the detector, while a small metal object will get a very shallow depth. Treasure hunters must understand the principle of underground metal detectors before buying, and don't blindly listen or exaggerate. At present, fake and shoddy metal detectors have been flooded in China, and most of the metal detectors in China market are fake and shoddy products, especially probe-type magnetic wave detectors. At present, Dongguan Hong Jun Electronic Technology Co., Ltd. has done a good job in this respect in the domestic market, and its products include protectors GF2 and FS22. Some detector companies cheat customers by using domestic detectors made in Japan and Germany. Originally, they were only 2-3 meters deep, but they boasted on the Internet that it was 8- 15 meters deep. For the magnetic wave detector, the detection depth depends on the size of the object, the buried age and the local geographical environment. The bigger the object, the deeper the object and the shallower the detection. The detection depth of a silver dollar is 30-60 cm, and the maximum detection depth will not exceed 6 meters. The instructions and telephone addresses of counterfeit products are false, and counterfeiters will not provide the original website. When purchasing imported metal detectors, it is necessary to identify the origin, import declaration form, original power of attorney, original CD operated by foreigners, foreign websites, foreign telephone numbers and other related procedures to avoid buying counterfeit products.