Switches are very common in people's lives. One type of switch is a vibrating switch. Vibration switch refers to turning on and off the control switch and the disconnected control circuit through vibration. ? Usually, the core element of a vibration switch is a vibration sensor, which means that it can only work as a whole when it has the ability to trigger the vibration element. In practice, it is said that vibration sensors have different sensitivities. The products are different. Generally speaking, the higher the sensitivity, the more expensive the product. When choosing products, you can choose products with corresponding sensitivity according to your own needs. Let me give you a brief introduction.

Mechanical vibration principle of vibration switch

1) The reciprocating motion of an object (or a part of an object) on both sides of a central position is called mechanical vibration, which is usually referred to as vibration for short. Mechanical vibration is a kind of mechanical movement, which is a special movement different from all kinds of movements learned before.

For example, the motion of the following objects is mechanical vibration: the ball moves back and forth between two smooth inclined planes; Hang a small ball with iron wire, and the ball swings in the vertical plane (simple pendulum); Wood blocks move up and down on the water; The sound of drums, the ups and downs of eardrums and so on.

2) Characteristics of mechanical vibration: First, there is a "central position" (usually called "equilibrium position"), which is also the position where the object stops moving. For example, if the ball of a simple pendulum is pulled away and then released, the ball will vibrate around the equilibrium position, and after repeated many times, it will finally stop at the equilibrium position. The second characteristic of vibration is that the movement is reciprocating, which is the biggest characteristic of vibration.

3) The conditions of mechanical vibration are as follows: firstly, every time the object leaves the equilibrium position, it will be acted by restoring force, which is also the mechanical characteristic of the vibrating object; Second, the resistance is small enough. If the resistance is great, the object can't vibrate. For example, a pendulum ball with a simple pendulum is in water or sticky oil. Because of the great resistance, it hardly vibrates.

What should I pay attention to when the vibration switch is stressed?

1) The force that makes the vibrating object return to the equilibrium position is called restoring force.

What kind of motion an object makes is closely related to the force it receives. Objects thrown vertically upward from the ground can return to the ground because the force points to the ground.

Similarly, the reason why an object can move back and forth near the equilibrium position without being far away, and stop at the equilibrium position after repeated many times is because it is influenced by the force pointing to the equilibrium position-restoring force. Therefore, no matter which side of the vibrating object is in the equilibrium position, the direction of the restoring force always points to the equilibrium position, so the restoring force is a variable force.

2) The restoring force is a force named after the action effect of the force, which is provided by the resultant force of the vibrating object in the direction pointing to the equilibrium position.

The spring oscillator is an idealized model. Structurally, one end is fixed with a massless spring, and the other end is connected with a mass point; There is no friction and medium resistance when moving, and the vibrating ball passes through a horizontal smooth rod.

In practice, as long as the mass of the vibrator is much larger than that of the spring and the vibrator is very small; Friction and air resistance are very small when moving, which can be regarded as a spring vibrator. Once such a spring vibrator vibrates, the mechanical energy is conserved and it can vibrate endlessly.

After the brief introduction of the above contents, everyone has a certain understanding of the vibration switch. Vibration can provide convenient help to everyone's life, so it is used more in special occasions. Vibration switches can be divided into two types: ball type and spring type. The spring works according to the bounce and contraction of the spring, and the ball works according to the rolling of the ball. Whether it is spring type or ball type, there are corresponding electronic components to match it, so that the vibration switch can work better. When selecting, the most suitable vibration switch should be selected according to different state occasions. I hope it helps.

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