What kind of accessories is the liquid level switch?
Publish：2021-11-26 ClickCount：1
Proximity switch is called by many names because customers have different understanding of its function, such as door magnetic proximity switch, magnetic induction switch, magnet induction switch, reed switch proximity switch, inductive proximity switch, Omron proximity switch and so on. This also causes many customers to find the reason why the products are not matched when they are close to the switch manufacturers. Lets summarize what kinds of proximity switches are divided into. What are the principles?
First, introduce the reed switch-style proximity switch, which is formed by sealing the reed switch in a molded plastic shell. Then, the proximity switch is induced by a magnet. When the magnet is close to the switch for a certain distance, the reed switch in the molded plastic shell is sealed to make or break, and the signal is output. For alarm prompt or remote control.
Second, inductive proximity switch is a position sensor with switch output, which consists of LC high-frequency oscillator and amplification processing circuit. When a metal object approaches the oscillating induction head that can generate electromagnetic field, eddy current will be generated inside the object. This eddy current reacts on the proximity switch, which attenuates the oscillation ability of the proximity switch and changes the parameters of the internal circuit, thus identifying whether there is a metal object approaching or not, and then controlling the on or off of the switch. The object that this proximity switch can detect must be a metal object.
