Title :
Numerical Calculation of the Magnetic Field and Force in Cylindrical Single-Axis Actuator
Author :
Fengqiu Xu ; Xianze Xu ; Zhongbing Li ; Liang Chu
Author_Institution :
Sch. of Electr. Inf., Wuhan Univ., Wuhan, China
Abstract :
This paper investigates a kind of cylindrical linear single-axis actuator that is used in the magnetic levitation stage to provide fine movement. The magnetic flux density distribution due to the permanent magnet is determined using the surface charge method, and the magnitude of force generated by the actuator is calculated using the Lorentz force equation. Both of them can be solved by numerical integration. The results are verified by measurements. The magnetic force components are fitted as an analytical style that can be used in the real-time controlling of this actuator for the magnetic levitation stage.
Keywords :
integration; magnetic actuators; magnetic flux; magnetic forces; magnetic levitation; numerical analysis; permanent magnets; surface charging; Lorentz force equation; cylindrical linear single-axis actuator; fine movement; force magnitude; magnetic field; magnetic flux density distribution; magnetic force components; magnetic levitation stage; numerical integration; permanent magnet; surface charge method; Actuators; Coils; Force; Magnetic field measurement; Magnetic flux; Magnetic levitation; Permanent magnets; Linear single-axis actuator; magnetic levitation stage; numerical integration; surface charge method;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2014.2329456
