阻抗线圈

The impedance of a probe-coil above a conductive plate with finite thickness was derived and expressed in series expansion,and then the impedance characteristics of the coil due to lift-off variation were analyzed.

推导了线圈置于有限厚度的金属平板上方时其阻抗计算的级数表达式，并以此为基础分析了由线圈的提离改变所引起的线圈阻抗的变化特征。

Coil short circuit/mechanical endurance, magnetic field and coil eddy current loss, it's possible

阻抗计算、线圈短路机械耐力、磁界、线圈涡流损失之电脑解析程式验证应用，可确实掌握变压

One of these testing methods, eddy current, has been widely used for metal thickness measuring because of its good sensitivity, high test speed , non-contact and other advantage. The principle of eddy current testing is that, when the test coil is close to the metal conductor with alternating current, the eddy current would be inducing in the conductor, and correspongdingly, the eddy current would affect the original magnetic field, the result is the coils impedance and inducing voltage changed.

其中涡流无损检测技术具有灵敏度高、检测速度快、非接触等特点而广泛应用于金属厚度检测，它的原理是当载有交变电流的检测线圈靠近金属导体时在导体中产生涡流，该涡流又影响原磁场，使得线圈的阻抗和感应电压发生变化，通过分析阻抗或感应电压的变化来获得被测导体的信息。

The virtual instrument interface based on LabView is suitable for the inductive impedance measuring system and it can be used to conduct measuring experiments and preliminary imaging experiments.

在开展磁感应方式电阻抗测量的实验中［2］，我们工作小组初步建立了单线圈的旋转方式阻抗测量系统。本文主要介绍了该系统基于LabView的虚拟仪器接口的原理以及实现过程。

Secondly, the relationship between the coil impedance and its liftoff for different materials are obtained using separation of variables and numerical calculation methods.

为考察电涡流传感器中等效电路的适用性，本文从被测体材料角度出发，在分析等效电路基础上，采用分离变量法和数值计算法，得到不同被测材料下探头线圈阻抗与提离高度的关系，并与从等效电路得出的结论比较，确定等效电路的适用性，同时考察被测体厚度对线圈阻抗的影响，最后对得出的结论进行理论分析。

A plasma generation apparatus includes: a chamber having a chamber lid and defining an airtight reaction region; a susceptor in the chamber; a gas supply means supplying a process gas to the chamber; and a toroidal core vertically disposed with respect to the susceptor through the chamber lid, comprising: a toroidal ferromagnetic core combined with the chamber, the toroidal ferromagnetic core having a first portion outside the chamber and a second portion inside the chamber, the second portion having an opening portion; a radio frequency power supply connected to the chamber; an induction coil electrically connected to the RF power supply, the induction coil rolling the first portion; and a matching circuit matching an impedance between the RF power supply and the induction coil.

一种等离子体产生装置包括：一腔室，其具有一腔室盖并界定一气密反应区域；一在所述腔室中的基座；一气体供应构件，其将一制程气体供应到所述腔室；和一环形铁芯，其穿过所述腔室盖相对于所述基座垂直设置，所述环形铁芯包含：一与所述腔室相组合的环形铁磁芯，所述环形铁磁芯具有一在所述腔室外的第一部分和一在所述腔室内的第二部分，所述第二部分具有一开口部分；一连接到所述腔室的射频电源；一电连接到所述RF电源的感应线圈，所述感应线圈卷绕所述第一部分；和一匹配电路，其匹配所述RF电源与所述感应线圈之间的一阻抗。

Impedance analytical method is presented, through which we analyze some factors that alter testing coil impedance's value.

阐述了阻抗分析法，并用其分析了影响检测线圈阻抗变化的几个因素。

We call it today was optimum only for a low impedance coil.

只对低阻抗线圈的最佳。

Meanwhile, the analytical expression of coil impedance increment is also obtained.

在此基础上，导出了球和空芯圆柱线圈共轴电磁系统的电磁场解析解和线圈的阻抗增量解析式。

This thesis presents the application of improved Genetic algorithm to reconstruct the conductivity distribution of stratified biological tissue by measuring the change of impedance in the coil.

本文主要研究在载流线圈作用下，通过测量生物组织产生的二次场对线圈阻抗的改变，应用改进的遗传算法重构分层生物组织各层电导率和厚度的方法。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了