1. What is a magnetic switch?
Magnetic proximity switch is a kind of proximity switch. Proximity switch is a kind of sensor series. It adopts advanced electromagnetic working principle and is a position sensor. It can change the position relationship between the sensor and the object, and convert non-electric or electromagnetic quantities into required electrical signals for control or measurement.
Magnetic proximity switches are used in aviation, aerospace and industrial applications. In daily life, such as the automatic doors of hotels, restaurants and garages, automatic hot fans are used. In security and anti-theft, such as data files, accounting, finance, museums, finance and so on. , usually equipped with anti-theft devices composed of various proximity switches. In measurement technology, such as length and position measurement; Proximity switches are also widely used in control technology, such as measurement and control of displacement, speed and acceleration.
Second, what is the principle of magnetic switch?
The magnetic switch is a closed metal or plastic pipe with one or more reed switches on it, and then the pipe passes through one or more floating balls, in which the ring magnet is located, and the floating ball is controlled by a fixed ring. At the relevant position of the reed switch, the float floats up and down within a certain range. The magnet in the float is used to attract the contact of the reed switch to produce the opening and closing action.
Third, the principle of magnetic switch-what are the classification of magnetic switches?
SMC magnetic switches can be divided into contact type and non-contact type, a series of magnetic switches, without signs or A, B, C, E and Z are contact type, and F, G, H, J, K, M, P and Y are non-contact. Contact type with or without leakage current. The contactless magnetic switch has a semi-permanent life because there are no moving parts, but there is leakage current. SMC magnetic switch can also be divided into two-wire system, three-wire system (also divided into NPN and PNP) and four-wire system (less used). In addition, the line length standard of magnetic switch is 0.5 meters. But you can also choose 3 meters or 5 meters.
Third, the principle of magnetic switch-what brands of magnetic switches are there?
1. Eagle
Fei Ying, a well-known trademark in China, is a large-scale enterprise integrating manufacturing, scientific research, import and export trade, service and real estate development and management. In the long-term practice, Feidiao Electric has actively recognized and cultivated the market with advanced ideas and actions, created a brand-new market, expanded new ideas, established a nationwide marketing network, and formed a strong brand competitiveness.
2. Siemens
Siemens was founded in Germany on 1847, and is one of the largest electromechanical/electrical engineering and electronics companies in the world. Located in Berlin and Munich, Siemens is a global leader in electrical and electronic engineering, focusing on four business areas: industry, energy, health care, infrastructure and cities.
Schneider
Schneider has a glorious history of more than 170 years, and is a global energy efficiency management expert, focusing on power and automation management. In fiscal year 20 12, schneider's global revenue reached 24 billion euros, and it has more than140,000 employees in more than 0 countries.
4. Panasonic Corporation of Japan
Panasonic is a Fortune 500 company, a world brand, a large multinational company and one of the largest electronic manufacturers in the world. There are more than 230 companies in the world with more than 290,493 employees. There are more than 54,000 people in China. The total sales in 200 1 year exceeded 6 1 billion dollars, ranking 26th among the top 500 manufacturing enterprises in the world.
5. Zheng Tai
Zheng Tai, founded in 1984, is the largest manufacturer and seller of low-voltage electrical appliances in China, a well-known trademark in China and a high-tech enterprise. Mainly engaged in: electric power, construction, metallurgy, petrochemical, water conservancy, aerospace, electronics and other industries; The product range includes R&D and manufacturing services of industrial electrical equipment, transmission and distribution and manufacturing of electrical R&D, R&D and production support services of building and consumer electronic products, and R&D of photovoltaic cells and component systems.
The above is all the contents of the principle of magnetic switch introduced by Bian Xiao.