Title :
Analysis of a Short-Stroke DC Linear Motor for nanopositioning
Author :
Liyi, Li ; Donghua, Pan ; Baoquan, Kou
Author_Institution :
Dept. of Electr. Eng., Harbin Inst. of Technol., Harbin, China
Abstract :
The analysis of a Short-Stroke DC Linear Motor (DCLM) with Halbach array structure is described. The motor is applied for nanopositioning system. The method of images is adopted to predict the distributions of global and local magnetic field for obtaining precise calculations. The derivation of flux density formulae are shown in this paper. The method of images and testing curves are coincident, at different position, demonstrates the analytically predicted distributions of air-gap flux density is exact. Then the thrusts of DCLM have been predicted by the method of image at different positions.
Keywords :
DC motors; air gaps; linear motors; nanopositioning; DCLM; Halbach array structure; air-gap flux density; flux density formulae; global-local magnetic field; nanopositioning; short-stroke DC linear motor; Air gaps; DC motors; Fluctuations; Image analysis; Magnetic analysis; Magnetic fields; Micromotors; Nanopositioning; Optical devices; Testing;
Conference_Titel :
Electromagnetic Field Computation (CEFC), 2010 14th Biennial IEEE Conference on
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4244-7059-4
DOI :
10.1109/CEFC.2010.5480487
