Nowadays, there are many people playing treasure hunter. Some office workers will drive to the suburbs and rural areas with this device on weekends to look for copper coins, cigarette pouches and pots.
Those who really do tomb robbing basically don't use this, because they can only explore the very shallow layer of the earth's surface. Even the tombs of civilians in the Qing Dynasty have to exceed that depth, so I am not too familiar with this thing, but I know its principle.
In the early 2000s, online shopping was not yet popular, so there were probably three types of treasure detectors that ordinary people could buy.
One is the electromagnetic induction type, the other is the low-frequency microwave induction type, and the other is the pulse induction type. (The x-ray type needs to be combined with a geological imager, which is not available for individuals.)
The three things I mentioned are almost the same. The difference is accuracy and depth. It is impossible to distinguish between scrap iron and copper coins. As long as there is one, there will be a reaction.
Relatively speaking, pulse-type metal detectors are more sensitive. Now when you take the subway or train, the machine that beeps when you go up and down for body searches is a pulse-type metal detector.
Tian Sanjiu's were the most powerful electromagnetic induction detectors at the time. They were rare in China at the time. They could scan to about three meters underground (usually only one meter). They were all imported and the brand seemed to be "Golden Ami".
Special –p11”.
All I know is that this thing was borrowed from a group of Shanxi people who specialize in cellaring. This group of Shanxi people are still active in cellaring. Sometimes I watch the Taobao live broadcast room to sell the tubes into sacks, at least half of the money.
The supply of goods is all released from the hands of this group of Shanxi people.
Compared with tomb robbing, using treasure detectors is also illegal according to the law, but now many places are not controlled by anyone, and they can also be purchased online.
If you want to play it, you should play it early. I think this thing will be banned in two years, and no one will be allowed to sell it by then.
...
"How about Yunfeng? This thing is good," Brother Yu took out the thing from the trunk and said with a smile: "We have tried it. If there is metal two or three meters underground, it will make a sound. There is an iron bump as big as a cast iron Buddha.
, we should be able to find it.”
This imported product is divided into two parts. The hand-held metal probe uses two wires and is connected to a rectangular metal box. The metal box is placed in a cloth pocket and needs to be carried on the back.
After Brother Yu finished it, it looked like he was going to spray pesticides in the fields.
Tian Sanjiu checked the time: "It's a big place here. It starts at 1:40 and ends at 4 in the morning, which is less than three hours. Each of the three of you will take one, sweep according to the area, and dig out if there is any reaction."
"What if someone comes over?" I asked.
Tian Sanjiu said: "The second cotton holiday lasts until March, and the decoration workers live in other factory areas. It takes ten minutes to drive from the north gate to here, and the guard will not come. As long as the old man goes to sleep, we will be safe here."
.”
I know Tian Sanjiu is talking about Master Xing.
I looked over at the dormitory building and saw that it was completely dark, so I must have fallen asleep.
After gently closing the car door, we put on our headlamps, divided into three areas, and started sweeping the wasteland with treasure detectors.
"drop....."
I took the probe rod and it started ringing just after I took two steps. I dug around with a shovel and found that it was a can.
Science makes people progress.
Under certain circumstances, this tool is really efficient. It doesn't take much effort to dig out a lot of messy things, including rotten cigarette rods, stainless steel lighters, beer bottle caps, rotten iron wire, etc.
I walked forward slowly, and around three o'clock, I found many small holes dug in the ground.
"etc...."
"Wait....."
I quickly ran to the red eye, and he was ready to dig with the shovel.
I asked: "Are you sure? There is something under here?"
Red eyes nodded.
As soon as he scanned it, the machine beeped continuously.
My face looks a little ugly.
I said, why don't we go sweep other places first, maybe we can find the Iron Buddha, but there might be rotten scrap metal underneath.
He looked at me twice.
Suddenly he took two steps forward and kicked the tombstone down.
