Magnetic induction of a circular current is calculated using magnetic scalar potential. 用磁标势法计算了圆形线电流的磁感应强度。
We know from the principles of physics concerning electromagnetic induction that an electrical current always has an associated magnetic field. 我们从有关电磁感应的物理学原理获知,电流总是要有一个相关的磁场的。
An induction coil that converts current from a battery into the high-voltage current required by spark plugs. 能够把电池转化为电源插座必须的高压电流的感应线圈。
The results show the distributions of the magnetic induction intensity, the current density and the temperature. 数值结果显示了导轨及固体电枢内部磁感强度、电流密度和温度分布;
Magnetic Induction Intensity of Electric Current on the Finite-Length-Even Cylindrical Surface 有限长均匀圆柱面电流所在处的磁感应强度
Measurement of Outer Diameter and Conductivity of Nonmagnetic Pipe Using Absolute Induction Eddy Current Sensor 绝对式涡流传感器测量非磁性管材外径和电导率
Automatic induction voltage regulator autocompounded current transformer 自动感应电压调整器自复绕式电流互感器
By the analysis and calculation examples, this paper has expounded the influence degree of induction motor on short-circuit current to depend on relative big or small capacity of induction motor. 通过分析和计算实例,阐明感应电动机在工厂供电系统短路电流计算中,其影响程度取决于电动机容量的相对大小;
Several key problems in software designing are introduced with emphasis, including the digital implementation of i_p, i_q algorithm calculating induction current, the generator scheme of PWM waveform and the implementation of digital PI controller using to control voltage in DC side by DSP. 重点介绍了软件设计中的几个关键问题的解决方法。包括ip,iq算法计算指令电流的数字实现,脉宽调制波形的产生方案和控制直流侧电压的数字PI调节器的DSP实现方法。
At the same time, the induction current is produced on the top of arch above the neutral line, and the H_ α flare is formed by Joule dissipation of the current. 同时在磁弧的顶部,即在中性线上空产生了感应电流,它的焦耳耗散形成了Hα耀斑。
As a supplement to the thesis, the affection of mutual induction on the current characteristic of Doubly Salient Permanent Magnetic Motor is also studied. 除此以外,本文还研究了永磁双凸极电机绕组互感对电流特性的影响。
This paper presents the method of measuring corona current, induction current and ground field from lightning eliminator with multiple conductor points and lightning rod, gives results of field measurement. 通过测量电晕电流说明消雷器不可能消雷本文介绍了对多针消雷器、常规避雷针的电晕电流、感应电流、保护区内外地面电场的测量方法和实测结果。
Then magnetic intensity, induction and eddy current loss were also computed when the span was 30 mm. The results agree with the experimental measurements, which proves the effectiveness and feasibility of this method. 选取气隙宽度为30mm时计算电磁场的磁场强度、电感和涡流损耗,所得结果与实验测量值完全吻合,验证了模拟计算的可靠性。
The Induction Current and Electric Quantity Passing through Closed Return Circuit& Analyses of the Tenable Conditions of Two Formulae in Electromagnetic Induction 通过闭合回路的感应电流与电量&试析电磁感应中两公式成立的条件
A Formula on Magnetic Induction of Circular Current and its Application 圆电流的磁场公式及其应用
Research on Temperature Controlled Models Based on Induction Heating Current 基于感应加热电流的温度控制模型研究
A series of techniques for making the EMI sensor based on the theory of ElectroMagnetic Induction, eddy current effect and skin-effect were introduced. 介绍了根据电磁感应原理、电涡流效应和集肤效应设计、制作EMI传感器的方法。
A method of excitation control is proposed, and it would accelerate the dynamic response of the system and compensate the influence of damper windings by counteracting the induction current partially. 提出励磁电流控制思想,加快系统的动态响应,补偿阻尼绕组对电动机动态性能的影响。
This text has given a brief outline and induction about the current situation of the domestic and foreign literature reference work, and has put forward some views about literature reference work of our country in the aspect of development, completion, promotion and etc. 本文对国内外的文献参考咨询工作现状作了简要概述及归纳,并就我国文献参考咨询工作的开展和完善、提高等方面提出了一些看法。
The influences of different coupling widths of the heating subassembly on the induction magnetic field, induction current and Joule heat in the large size SiC growth system have been investigated systematically. 本文采用有限元分析方法系统地研究了大尺寸SiC晶体PVT法生长装置中的加热组件不同的耦合间隙对生长系统中的感应磁场、感生电流和焦耳热的影响;
The geomagnetism storm in transmission network produces the geomagnetism induction current ( GIC), which has great influence on safe operation of power system. 磁暴在输电线路上产生地磁感应电流(GIC)对电力系统安全运行有很大影响。
The PWM carrier frequency component of the measured mutual induction voltage ( current) is the function of the magnetic mutual inductance, which is the function of the gap displacement of rotor. 所要检测的互感电压(电流)信号的PWM的电流频率的成分是电磁铁互感系数的函数,互感系数又是转子气隙位移的函数。
The Hilbert pattern of the induction motor stator current, which is a certain graph in nature, is investigated, using the graph zooming technique. 利用图形缩放技术,对笼型异步电动机转子正常及断条情况下的定子电流信号希尔伯特模式做了研究,并概括出内在规律。
In order to realize non-contact connection and power transmission, the rolling magnetic field of asynchronous magnetic coupling is motivated by permanent magnet excitation. Then, the induction current to transmit torque is induced in the course of cutting magnetic field by the squirrel cage conducting bars. 异步磁力耦合器通过永磁体励磁产生旋转磁场,笼条切割磁场产生感应电流进而传递转矩,实现原动机与负载间的无接触式连接及动力传输。
Two signal acquisition channels were designed to sample the induction voltage and excitation current respectively. 设计了两路信号采集通道,同时对感应电压和激励电流进行采样。
Based on the thermal effects, induction current can heat the surface of the work piece, make the surface heat fast and then refrigerate quickly. This modern industrial quenching technology is called induction heating surface hardening. 感应加热表面淬火是利用感应电流通过工件产生热效应,使工件表面局部加热继之快速冷却的现代工业淬火技术。
The induction heating use the heat generated by the electromagnetic induction and eddy current effect within the wire to heat it. 感应加热利用电磁感应及涡流效应,在钢丝内产生涡流进而产生热量来加热钢丝。
This article comes up with optimized ways suitable to tele-communications enterprise networks with analysis and induction based on current security problems of tele-communications local networks and detailed network optimization technique. 针对电信企业局域网络安全存在的问题,结合具体网络优化技术,以分析归纳的方式给出与电信企业网络相适应的优化分析方法。