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What are the types of switches? We also made a brief introduction to this issue, but found that there are still customers who do not understand. Just today, I also use this opportunity to explain to everyone. Hope to bring good help to relevant people.

Because the displacement sensor can be made according to different principles and different methods, the "perception" method of different displacement sensors on objects is also different. Therefore The closed state of the switch is controlled by magnetic induction. When the magnetic or iron trigger is close to the magnetic field of the switch, it is closed by the control of the internal magnetic force of the switch. Features: No power, non -contact, maintenance, environmental protection.

The vortex is close to the switch, and this switch is sometimes called an inductance close to the switch. When it is close to the near -switch that can generate an electromagnetic field, it uses the conductive object to generate vortex inside the object. This vortex response to the switch close to the switch, which changes the internal circuit parameters of the switch, so as to identify whether there is a conductive object to approach, and then control the interruption of the switch. The object that can be detected by the switch must be a conductor. Principle: The oscillator consists of an inductive coil, a capacitor, and a transistor to produce a variable magnetic field. When the metal object is close to this magnetic field, a vortex is generated in the metal object, causing the oscillation to stop. This change is extremely enlarged. After processing, convert to the transistor switch signal output.

For location detection, count signal pickup, etc. on various mechanical equipment. The capacitor is close to the switch. The measurement of this switch is usually a plate that forms a capacitor, and the other plate is the shell of the switch. This shell is usually grounded or connected to the device's shell during measurement. When an object moves to the close to the switch, whether it is a conductor, due to its approach, the dielectric constant of the capacitor will always change, which will change the capacitance. Variety. The measurement head will also appear. This kind of object conductor close to the switch can also be an insulated liquid or powder.

Hall is close to the switch, and Hall components are a magnetic component. The switch made from Hall components is called the Hall switch. When magnetic objects are close to the Hall switch, the Hall element on the switch detection surface has changed the state of the internal circuit of the switch due to the Hall effect, thereby identify the existence of magnetic objects nearby, and then control the switch or pass.

Model:JS-31