magnetic systems

magnetic systems: China material magnetic phenomena and application of magnetic materials in the country was the first to discover the world. magnetic tubes Early in the Warring States period magnetic systems . In Eleventh Century invented the method of producing artificial permanent magnetic material. In 1086 the "dream" record of making and using the compass. From 1099 to 1102 with a compass for navigation of the account, it is also found that the geomagnetic declination phenomenon.In modern times, the development of the electric power industry to promote the development of metal magnetic material -- wet magnetic separator.magnetic rods The main magnetic path of the magnetic circuit along a closed circuit is formed is set, the air-gap magnetic powder rapidly formed along the magnetic air gap solid chain, through its binding, the link cylinder and  A rotor, in order to achieve torque transmission, the magnetic flux after power-off moment disappears rapidly solidified powder of the disintegration under the action of the centrifugal force, squeezed in the inner cylinder