Abstract
This paper deals with the performance characteristics of a two-axis linear pulse motor (X-Y LPM) using air bearing. The mass, M, of the mover of X-Y LPM is 1.35 kg and the maximum static thrust, Fs, is 48.5 N with two-phase excitation at 2 A. The maximum velocity of the mover, v, is 1.4 m/s and the maximum acceleration, a, is 14.3 m/s2 at a velocity of 1 m/s without any load. The kinetic thrust, Fk, is 19.3 N. A non-oriented magnetic steel sheet, 50A350, is used as the core in the mover, and rolled steel for general structures, SS400, is used as the stator. The maximum flux densities, Bm, of 50A350 and SS400 are 1.45 T and 0.123 T, respectively, in a magnetic field with a maximum intensity of 1 kA/m and at a frequency of 1 kHz. The material of the stator must have a high magnetic flux density at the driving frequency to achieve high velocity and high-thrust driving of the X-Y LPM.
