Is it dangerous to the human body if you frequently pass the security gate with your mobile phone?

Almost all transportation hubs, exhibition halls, convention and exhibition centers, large-scale sports events and performance venues, important functional departments, prisons and some production, office and entertainment venues are equipped with security detectors and security gates at the entrance.

We are familiar with the inbound security check mode of “people go through the security gate and objects go through the security machine”. This is even more normal for office workers who take the subway, travelers who travel frequently, and people who need security checks for work. At the same time, security personnel often work next to security inspection equipment.

So are security check gates and security check opportunities harmful to the human body?

In this issue, let’s discuss whether security gates are harmful to the human body.

According to the historical book “Sanfu Huangtu”, after the construction of Afang Palace, Qin Shihuang specially “used magnets as a magnet” to prevent assassins carrying iron weapons from entering. Our common security inspection gates are also called pass-through metal detectors in the industry, which are instruments and equipment that focus on detecting metal objects carried by people passing through. In principle, it uses the phenomenon of electromagnetic induction.

The security screening gate can generate an alarm for passing metal objects because the door panels on both sides are equipped with detection sensors that can emit and receive changes in electromagnetic fields. When the person being inspected passes through the security gate, the detector will emit electromagnetic waves. The electromagnetic waves act on the metal objects they carry and cause the electromagnetic wave signal to change. The signal is received by the receiver and detected. The signal is then amplified and processed. When the signal volume reaches the set value, the alarm light in the corresponding height area will flash and sound an alarm. Electronic products containing metal, such as mobile phones, computers and other devices, will be detected whether they are turned off or on.

Mobile phone signal detection detector

Mainly aimed at confidential places where mobile phone communication is prohibited, it detects/interferes with mobile phone signals, discovers and blocks mobile phone communication. The advantage of this equipment is that it can monitor and control mobile phone signals in a small area in a confidential area. By monitoring the mobile phone signal in a confidential area, the location of the mobile phone can be found through technical means, and the target can be found to achieve real-time control. No additional control lines are needed, it is portable, can be moved and deployed at any time, and is easy to carry and install.

The detection principle of the mobile phone detection door is mainly magnetic detection technology, which mainly detects changes in the magnetic field. It is easy to identify the magnets inside the mobile phone by putting a magnet over it and seeing if it rings. If it rings, you will know. Think about the magnetic buckle belt yourself! The key is shaking! All kinds of magnetic cards! Too many! All can generate magnetic fields, including the steel plates inside shoes, which can be used when walking! The false alarm rate can be imagined, but for mobile phones with better sealing, there is often nothing you can do! False negative!!! It seems like some weird nouns are called, but I can’t understand or remember them. Anyway, the effect is there! But if buying a mobile phone detection gate is just a decoration, it will cost a lot of money, so it’s okay to be so willful