摘要： 本发明的目的在于提供一种最大限度地增加无刷直流电机(BRUSHLESS DCMOTOR)的转子系磁导(PERMEANCE)系数而改善效率和起动特性,并且可以衰减转矩脉动(TORQUE RIPPLE)和噪音的无刷直流电机。
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magnetic permeance [物] 磁导
material permeance 物质透过
air permeance 空气渗透系数
unsaturated capillary permeance 不饱和毛管渗透
air-gap permeance 气隙磁导
air gap permeance 气隙磁导率
unit permeance [电磁] 单位磁导率
leakage permeance 漏磁导率 ; 漏磁导
Water Vapor Permeance 水蒸气透过量
For the sake of reduce the end force brought by the special end effect of linear motor, the paper presents a method of optimizing elementary length to modulate the phase of permeance of two ends, and optimizes the elementary length.
对直线电机固有的端部效应，提出了优化初级长度的方法对两端部磁导的相位进行调制，优化了初级长度，有效的削弱了端部作用力。
参考来源 - 永磁直线同步电动机关键技术的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
以上来源于: WordNet
N the act of permeating 渗入; 弥漫
Calculate the water vapor transmission, and permeance as follow.
按照下式计算水蒸气透过率和水蒸气透过系数。
At the same time, the solution to uniform air-gap permeance was analyzed.
同时也对均匀气隙磁导的求解进行了分析。
PET film oxygen permeance ratio is dropped after crystallization through drawing tropism, modified the barrier performance.
经过拉伸取向结晶后的PET薄膜氧气透过率获得下降，改善了阻隔性能。
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