The characteristics of eddy current retarder were analyzed at low and high velocity respectively. A selecting method for switch point between mathematical model and neural network was proposed.
分析了电涡流缓速器的输出制动力矩在低、高速时的特性，提出了数学模型与神经网络模型切换点的选择方法。
Second, analyzes the pulsed eddy current impedance model in detail, improves simulation of pulsed eddy current method of calculating, and carries out thickness, ranging simulation.
其次，详细分析脉冲涡流检测的阻抗模型，改进了脉冲涡流仿真计算方法，并进行了测厚、测距的仿真实验；
A mathematical model of a metal detector is established based on the principles of eddy current detection, which provide a theoretical criterion for selection of parameters of roof bolt detector.
依据电涡流式探测原理，建立了金属探测的数学模型，为锚杆探测仪参数的选择提供了理论依据。
A magnetic circuit model which can take hysteresis and eddy current effect into consideration is given. Generalized nodal equations and magnetic circuit equations are derived.
本文还建立了一个考虑磁滞和涡流效应的磁路模型，推导了广义节点方程和磁路方程。
Through the introduction of magnetic vector potential, the mathematical model of electromagnetic field and eddy current field was established.
其中，电磁场和涡流场的数学模型是通过引入复矢量磁位而建立的。
Calculations and experiments are carried out on both magnetic flux density and eddy current loss of the non-magnetic steel plate and of the coil in this model.
对该模型低磁钢板及线圈的磁通密度和涡流损耗进行了试验与计算分析，得到了一些有价值的试验和分析结果，为磁场计算和三维涡流损耗分析方法提供了验证手段。
This utility model has the advantages of simple structure, being capable of preventing clothes scrape, low noise, good filtering effect, preventing useless eddy current from producing.
本实用新型具有结构简单、能够防止刮扯衣物、噪声低；过滤效果好、防止无用涡流产生的优点。
A 2-d electromagnetic model of parameterized eddy current brake system was analyzed by electromagnetic method in ANSYS. Thus an exact equation between speed and braking force was obtained.
通过建立二维电磁场分析模型，对涡流制动系统进行了电磁场数学分析，推导并求解出了制动力和运行速度之间的关系表达式。
A 2-d electromagnetic model of parameterized eddy current brake system was analyzed by electromagnetic method in ANSYS. Thus an exact equation between speed and braking force was obtained.
通过建立二维电磁场分析模型，对涡流制动系统进行了电磁场数学分析，推导并求解出了制动力和运行速度之间的关系表达式。
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