Magnetic levitation technology originated in Germany. As early as 1922, German engineer Herman Qiangsuo put forward the principle of electromagnetic levitation, and applied for the patent of maglev train in 1934. /kloc-after the 1970s, developed countries such as Germany, Japan, the United States, Canada, France and Britain began to plan to develop magnetic levitation transportation systems to improve their transportation capacity and meet the needs of their economic development.
The idea of using magnetic force to make objects in non-contact suspension is an ancient dream of human beings, but it is not easy to realize. Because magnetic levitation technology is a typical electromechanical integration technology (high-tech) which integrates electromagnetism, electronic technology, control engineering, signal processing, mechanics and dynamics. With the development of electronic technology, control engineering, signal processing components, electromagnetic theory, new electromagnetic materials and rotor dynamics, magnetic levitation technology has made great progress. ..
At present (2009), the research hotspots at home and abroad are magnetic bearings and maglev trains, and the most widely used is magnetic bearings. Its special advantages, such as no contact, no friction, long service life, no lubrication and high precision, have attracted special attention from scientific circles all over the world, and scholars and business people at home and abroad have devoted great interest and enthusiasm to it.