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추력정수를 고려한 Short Stroke 형 LDM의 설계
윤신용,백수현,김용,정계천,류종상 동국대학교 산업기술연구원 1998 산업기술논문집 Vol.11 No.-
LDM (Linear DC Motor) are used in high speed, high-precision position control system. Because of these advantages, LDM has already used in the motor of pen-recorder, magnetic-disk devices. Under the limited dimension, we propose the design method of LDM by magnetic circuit. In this paper, a relation between the thrust constant and size of a LDM that is moving coil type with unipolar is described, which is defined as a simple relational equation. To maximize the rate of thrust to the volume of LDM, the magnetic flux density in the yoke is adjusted to the value of magnetic equation. By the magnetic field anaysis(FEM), the validity of the equation is confirmed.