Jiangsu Wuxi NPN proximity switch 3SG3234-0AJ33 proximity switch, also known as proximity switch or contactless travel switch, is a non-contact detection device used for measuring part size and speed. It can also be used for automatic connection of variable frequency counters, variable frequency pulse generators, liquid level control, and processing programs, in addition to completing travel control and limit protection. The characteristics include reliable operation, long lifespan, power consumption, positioning accuracy, operating frequency, and adaptability to harsh working environments. Performance characteristics: Among various switches, there is one type that has an impact on objects that are close to it; lquo; Perception; rquo; Components of Ability; mash;&mash; Displacement sensor. The use of displacement sensors to control the characteristics of approaching objects to achieve the purpose of switching on or off is called proximity switches. When an object moves towards the proximity switch and approaches a certain distance, the displacement sensor will only be activated; lquo; Perception; rquo;， The switch will only activate. Usually, this distance is called& lquo; Detection distance; rquo;。 But different proximity switches also have different detection distances. Sometimes the object being tested is moved towards the proximity switch one by one at a certain time interval, and then left one by one, repeating this process continuously. Different proximity switches have different response capabilities to the detected object. This response characteristic is called& lquo; Response frequency; rquo;。 Proximity switches are widely used in aviation, aerospace technology, and industry. In daily life, such as hotels, restaurants, automatic doors, and automatic hot air fans, there are applications. In terms of anti-theft, important places such as data archives, accounting, finance, museums, and vaults are usually equipped with anti-theft devices composed of various proximity switches. In measurement techniques, such as length and position measurement; In control technology, such as displacement, velocity, and acceleration measurement and control, a large number of proximity switches are also used. Working principle: The proximity switch consists of three main parts: oscillator, switch circuit, and amplifier output circuit. The oscillator generates an alternating magnetic field. When the metal target approaches this magnetic field and reaches the sensing distance, eddy currents are generated within the metal target, leading to oscillation attenuation and even stopping. The oscillation and stop changes of the oscillator are processed by the subsequent amplification circuit and converted into switch signals, triggering the driving device to achieve non-contact detection. The closer the target is to the sensor, the greater the damping inside the coil; The greater the resistance, the smaller the current of the sensor oscillator. The current loss of the inductive proximity switch decreases as the distance from the metal target decreases. Jiangsu Wuxi NPN Proximity Switch 3SG3234-0AJ33 Shandong Zhuoxin Machinery Co., Ltd. Rope Switch EXKLT2-P-II < Capacitive proximity switch GBT30
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