What's the name of the safety instrument?

The security inspection machine can not only identify the shape of the object, but also display the color. Various substances have different colors. Organic materials, such as paper, clothes and various foods, usually show orange. Mixed materials and light metals, such as those containing sodium, silicon and aluminum, usually appear green. And iron, copper, silver, etc. Displayed in black and blue. The brightness of the above colors depends on the density and thickness of the material.

Today's security equipment is like a mirror. You can see everything on your body as long as you go through it. So many people are worried that such sophisticated security equipment will not see all the secrets on them and whether this involves privacy issues.

Generally speaking, all traffic places are equipped with security inspection equipment, but the security inspection equipment at the bus station is not so strict, just checking the salute, and there is no need to check the passengers.

Other traffic places may be more stringent, such as airports, high-speed rail and other places. The accuracy of security inspection equipment is very high. In addition to our luggage, passengers also need to go through security inspection. The security level of luggage should be like a big mirror, and everything inside can be seen. When passing the security check, passengers will also be checked for their belongings.

Compared with the previous security devices, THz human body security device has many advantages, such as the above-mentioned need not use embarrassing means such as body search. In addition, it does not emit radiation, but only accepts the radiation of human body, which dispels the safety concerns of passengers; But also very reliable, and can detect not only metallic substances, but also nonmetallic dangerous substances such as ceramic knives, drug powder, liquid explosives and colloidal bombs. Finally, it is very efficient, and it can detect 500 people per hour, which is about five times that of traditional manual detection.

There are so many advantages, so what are the disadvantages? It's just too transparent Looking at the human body is like looking at a naked person who has taken off his clothes. This is unacceptable to many people, however, it is not insoluble. First of all, passengers can be informed that the security inspector sitting in front of the computer and "closed" in the cabin can't see the passengers themselves.

Security inspectors don't look at themselves with their heads tilted and then compare the images in the computer. In order to protect the privacy of passengers, this is not allowed.

Finally, if passengers don't want this kind of security check, they can also voluntarily choose to accept the "search" security check.