Guide: The magnetic switch is not easy to be found, but it has quietly penetrated into our daily life. Many families have installed magnetic switches on the doors and windows to avoid the invasion of forcibly invaders. How is the magnetic switch? To complete this glorious and arduous task? What is the principle of magnetic switch ?
First, the principle of magnetic switch - - Introduction
The door magnetic switch is a safety alarm system, which can be divided into two types: a door magnetic switch and a window magnetic switch according to different installation positions, which are generally not easy to be seen, and thus can play a good safety alarm function, forcibly invading the person. When the door or window is forcibly entered without seeing the magnetic switch, the magnetic switch will give an alarm sound or other information or directly inform the police station that an illegal person has invaded.
The magnetic switch can also be used with the access control system. Under normal circumstances, the entrant needs to perform the card swiping operation, and the system obtains its information to determine whether it has permission to enter. When there is permission, the door is opened and the entry is allowed to enter, except this case. All entry methods are forcibly entered, and the door magnetic switch will alarm when it detects that there is a forcible entrant.
Second, the principle of magnetic switch
The magnetic switch is mainly composed of a switch portion and a magnet portion. The switch portion is mainly a normally open reed switch; the magnet portion is mainly a permanent magnet containing a permanent magnet inside to provide a stable magnetic field. When the switch part is very close to the magnet part, that is, when the door or window is closed, the magnetic switch is in working state, and an alarm sound is emitted after receiving the attack of the forcible intruder; and when the switch part is spaced from the magnet part Far, that is, when the door or window is open, there is no forced intrusion, and the magnetic switch is closed.
Third, the principle of magnetic switch - - installation
The magnetic switch is often installed at the door and window of the home. If you need to, you don't have to find someone. We can install it by ourselves. First, buy the magnetic switch and wipe the installation position of the magnetic switch. Secondly, use the screw to fix the switch part and the magnet part on the door and the door frame respectively. Pay attention to the position; in the end, the two parts will be The cover is installed. At this point, the magnetic switch is installed successfully.
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