Development of a slotless tubular linear interior permanent magnet micro motor for robotic applications

This paper presents the development of a slotless tubular linear interior permanent magnet (TLIPM) micro motor for drive application in micro robots. Important design criteria are established based on the results of both analytical and numerical methods. The flux density distribution in the air gap, the electromagnetic force, and the motor inductance etc. are analysed and predicted by the finite element analysis (FEA).