What is the principle that mobile phones can vibrate? Where does the mobile phone vibrate?

Most mobile phones are small motors that use an eccentric block to realize vibration function. There is no way to adjust the vibration, because the small motor is fixed, just turn on the current switch and turn off the switch. There are generally no adjusting parts. But it can also be adjusted, that is, the opening and closing time of the switch. At present, the working mode of small motor vibrator is to turn on the switch, then turn off the switch and then turn on the switch. . . Work in this cycle. The purpose of this is: turn on the switch continuously, and the vibration is actually not strong. By constantly turning on and off the phone, the phone is quiet and dynamic, but the vibration is very strong. The way to adjust the sense of vibration is to control the opening and closing time of the switch, which can achieve good results. This small electric vibrator has a disadvantage: the switch is turned on first and then off. Because the motor has inertia, the mobile phone will continue to vibrate 1 sec. Apple adopts a linear motor vibration scheme, and the switch is turned on first and then off. The vibration will stop immediately. Because of this feature, Apple's linear motor vibration scheme can control the vibration within 0. 1 second and provide the maximum vibration force immediately, which is a good vibration scheme. (On the contrary, small motor vibrators need to vibrate for more than one second at a time, so they can't vibrate accurately and briefly, and the starting speed is slow, and it takes a few tenths of a second to reach the maximum vibration force. For example, at present, when a touch-screen mobile phone dials, it has the function of clicking once and the mobile phone vibrates once. Ordinary Android phones vibrate for a long time at a time, and they feel sloppy and have no texture. Linear motor and vibration motor for the latest Apple mobile phone. Every time you click on the screen, the vibration stops immediately, which is more advanced and more textured.