Research actuality and trend in development of tubular permanent magnetism linear motors

The principle and structure of a permanent magnetism linear motror are analyzed. A linear motor is a kind of novel motor which can transform electric energy into linear motion without using any other machines. The tubular permanent magnetism linear motors is discussed. According to the research situation on technology of the tubular permanent magnetism linear motors at home and abord, obtain some problems on this motors, for example: the analysis is not exact, the thrust is not large enough and the precision of control is not accuracy. At last, we making use of computers to improve the controlling accuracy of tubular permanent magnetism linear motors and the development of a new kind of tubular permanent magnetism linear motor according to the new theory, wil result in the tubular permanent magnetism linear motors having a broad application and fast growing prospects in the future.