浅析接近开关的选型与性能测定（Analysis of type selection and performance measurement of proximity switch）.docVIP

浅析接近开关的选型与性能测定（Analysis of type selection and performance measurement of proximity switch） Analysis of type selection and performance measurement of proximity switch Abstract: classification and structure of proximity switches are described in this paper. The selection of proximity switches and the determination of the main technical indicators of proximity switches are discussed from the material of the detected object. Keywords: classification, structure design, type selection, performance test 1. overview The proximity switch is a switch position without mechanical contact with the moving parts and can operate, when the object is close to the switch sensor surface to move distance, without mechanical contact and apply any pressure to make the switch action, thereby driving the AC or DC electrical or computer device to provide control instructions. The proximity switch is a switch type sensor (i.e. no contact switch), it is the characteristics of the travel switch, micro switch, and the sensing performance, and reliable operation, stable performance, fast frequency response, long service life, strong anti-interference ability, and has the advantages of waterproof, shockproof, corrosion resistance and other characteristics. The products have inductance type, capacitance type, Holzer type, AC and DC type. Proximity switch, also called contactless proximity switch, is an ideal electronic switch sensor. When the sensing area of metal detection body close to the switch, the switch can be non-contact, no pressure, no spark, quickly send electrical instructions, accurately reflect the movement mechanism and location of the trip, even for stroke control in general, the positioning accuracy, operation frequency, service life, convenient installation and adjustment and the harsh environment for ability is compared to the general mechanical switch cannot. It is widely used in machine tool, metallurgy, chemical industry, textile industry and printing industry. In automatic co