线圈模型

Having elucidated the principles of magnetic stimulation, a macro model of magnetic stimulation of excitable tissue is constructed and a method for systematically computing the magnetic field and the electric field induced by circular coil and 8-shaped coil is put forward.

本文在阐明磁刺激基本原理后，建立了磁刺激可兴奋性组织的宏观模型。系统地推导出圆形、8字形线圈磁场及产生的感应电场的计算方法。

After analyzing the magnetic field distribution of arbitrary shape coil, we study the distribution of analytical model of traveling magnetic field, rotating magnetic field and electromagnetic force in difference case in the electromagnetic crystallizer.

2在分析任意形状线圈的磁场分布基础上，在电磁结晶器内，研究了不同情况下行波磁场和旋转磁场及其电磁力的分布解析模型。

Detachable transformer is an important component of contactless power transmission system. This paper sets up the model of dissociable transformer by ANSYS and discusses various factors that may have influence on transmission efficiency by ANSYS and offers several guidelines to realize systems.

可分离变压器是非接触电能传输系统的重要组成之一，本文利用ANSYS软件，建立了可分离变压器的模型进行仿真，分析了电流、线圈绕制方法、变压器间距、磁导率等各种可能会影响传输效率的因素，并为实际系统选择模型提供了参考依据。

The distribution of magnetic induction density in the coil was measured through the little coil method.

用小线圈法实测了线圈内磁感应强度的分布，并将实测值与计算值进行比较，验证了模型的有效性。

The mathematical model and optimized result indicate that the magnetic field in the inner wall of the detecting coils is of non homogeneity. At a ratio R/L .2, the magnetic field along the axial length and within the range of 90% radial direction is nearly homogeneous.

数学模型和优化结果表明：在检测传感器线圈中部范围内为非匀强磁场，且呈非线性变化，细长管磁场相对均匀；当选取 R/ L 。2 ，磁场在线圈轴向长度范围内，径向在90 %范围内可近似看作均匀磁场。

Although this structure is comparatively complex, it still can be divided into sub-strctures to study. This paper puts forward for the first time the loop geometric model of MBWK fabric reinforced composite. And based on this research, the total structural model for the MBWK fabric reinforced composite was also derived subsequently. In addition, the Non-Uniform Rational B-Spline Curve NURBS for abbriv.

我们经过合理分解复合材料的内部结构，对实际结构作了必要的简化之后，得到了可以进行几何和力学分析的结构单元，也就是说，线圈结构可以用数学方法描述，所以本论文第一次提出了MBWK织物增强复合材料线圈结构的几何模型并分析了这种复合材料整体的结构形态特点。

This article expatiated on the structure and principle of coreless transformer in printed circuit board, introduced and analysed the Hurly_duffy's method to calculate the self and mutual inductance of coreless transformer in printed circuit board in which I found the fault, re-modified the current unit model, deduced a new formula used commonly, and offered testing process and circuit as well as mended the structure of coreless transformer which made the analysis easy.

本文阐述了无芯印制板变压器的基本结构和原理，介绍和分析了Hurly-duffy 的无芯印制板变压器自感和互感的计算方法，指出了它的不足，在纽曼公式的基础上，重新修正了电流元模型，将线圈看作是粗线圈，推导出普遍适用的计算公式，并给出了测试方法和测试电路。

A non-singular single integral mathematical model is adopted to calculate the external intermittent and alternative longitudinal magnetic field acquired by single axisymmetrical and cylindrical hollow coil t which is coaxial to electrode and excitated by a revisable pulsed current of square wave t in austenitic stainless steel GTA welding.

针对奥氏体不锈钢外加纵向磁场的气体保护钨极电弧焊接时，与电极同轴的单个轴对称空心圆柱线圈在双向脉冲矩形励磁电流作用下产生的间歇交变纵向磁场，采用无暇点单积分磁场的数学模型，对＊TAW焊接外加间歇交变纵向磁场进行了数值计算，该方法具有模型简单、计算速度快和精度高等优点并讨论了该间隙交变纵向磁场的分布、磁场的均匀性及其纵向分量与径向分量的比率等规律及其对焊接行为的影响，认为横磁分量将削弱GTAW外加纵向磁场的有利作用，影响磁控电弧的焊接质量

Stability analysis of nonlinear magnetic suspension, the magnetic suspension system model was found based on electromagnet dynamics and voltage balance of the electromagnet coil; The feedback of position and velocity and current are used as the control variable; After the control rule was applied to the electromagnetic system, the louts criterion was used to get the range of the control parameter in which the system was steady-going.

非线性磁悬浮系统的稳定性分析，通过电磁铁动力学和电磁线圈的电压平衡方程，建立磁悬浮系统基本模型。求出系统奇点后，通过系统线性展开求出系统矩阵。用PD控制外加电流反馈量，将控制规律带入系统模型方程组求出矩阵的特征方程，由劳斯判据得知非线性系统稳定的位置反馈系数及取值范围。

Applying the theory to the three-dimension model of warp-knitted loop, the coordinates of some control points defining the loop are amended.

结合此偏移理论，在已建立的经编线圈三维模型的基础上，修正了定义线圈三维结构的部分控制点坐标。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。