Using the slider to drive a metal bar to cut perpendicularly the uniform magnetic field in the center of a Helmholtz coil, induction electromotive force could be produced.
利用滑块带动金属杆切割亥姆霍兹线圈中心区域匀强磁场的磁感应线，可以产生感应电动势。
Based on its operation principle, a relatively accurate analytical expression of the magnetic levitation force for an induction-tyle bearing-less motor is proposed in this paper.
从运行原理出发，建立了感应型无轴承电机磁悬浮力的解析模型。
The common principle is the use of the induction of an electromotive force by the variation of the magnetic flux through a coil.
一般原理均是使用通过线圈的磁通量变化感应的电动势。
According to the work of magnetic force, the relationship between induction electro motive force and the energy change in magnetic field is analysed.
根据磁力做功的特点，通过对感应电动势与磁场能量变化关系的分析，得出磁力做功是磁场能量改变的量度、电磁感应现象是能量转换的过程的结。
The rule of magnetic induction density, induced eddy current and electromagnetic force varied with high frequency sine exciting current was investigated.
利用瞬态分析方法，研究高频正弦激励电流密度在结晶器内钢液中产生的磁感应强度、感应电流及电磁力的变化规律。
The rule of magnetic induction density, induced eddy current and electromagnetic force varied with high frequency sine exciting current was investigated.
利用瞬态分析方法，研究高频正弦激励电流密度在结晶器内钢液中产生的磁感应强度、感应电流及电磁力的变化规律。
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