本发明仅需在现有手机上增设光敏接收窗和光敏感应电路，软件上增添防盗模块的设计，成本低廉，使用方便。
The invention is only need to add light sensitive reception window and light sensitive induced circuit, and add module of guarding against theft to software.
在分析计算含电感电路和电力拖动系统时，要涉及感应电动势的概念。
When you analyze and calculate the induction and circuit and transmission systems, you would involve the induction electrodynamic potential concept.
该感应电流流在相同的方向上的电路的电流。
This induced current flows in the same direction as the circuit current.
磁场加速法是一种新型、高性能的感应电动机控制方法，其电磁过程可用暂态等值电路进行分析。
Field acceleration method is a new control method for induction motor. Its electro-magnetic process can be analysed with the transient equivalent circuit.
雷电感应电压和感性负载接入或脱离电源电路时所产生的干扰电压是电源网主要的干扰脉冲电压。
The inductive voltage of the thunder and lightning and the produced disturbance voltage when the inductive load turns on or is separated from the power network is main disturbance pulse voltage.
依据直线感应电动机等值电路，在合理假设的基础上，通过公式推导，得出一种设计直线感应电动机的方法。
Based on the equivalent circuit of the linear induction motor and reasonable assumption, a design moted for the linear induction motor is obtained by derivation of equation.
介绍了在可控硅中频感应电炉中整流电路和逆变电路的常见故障及其排除方法。
The common breakdown and its removal of the rectifier circuits and inverse transforming circuits in intermediate frequency induction electric furnace for thyristor are introduced.
在感应电动机等效电路的基础上，分析了当电源频率发生改变时，等值电路中主要参数的变化规律。
The principle of main parameter of the with the change of source frequency were given on the base of analyzing the equivalent circuit of induction motor.
本文尝试用感应电动机的T型等效电路和能量比法，分析三相感应电机的工作特性。
The author tries to analyze the operational characteristics of three phase induction motor using the T-type equivalent circuit of induction motor and the energy ratio method.
对交流调压电路进行了进一步的研究，利用起动电流信号作为反馈量，对三相感应电动机软起动控制系统进行闭环控制。
Further study of Circuit exchange regulator presents, takes the starting current as feedback signal to complete closed-loop control of soft start control of the three-phase induction motor.
介绍了一种运用计算机对三相感应电动机等效电路参数进行高精度计算的方法。
A high precision computing method of equivalent circuit parameter of 3-phase induction motor is discussed in this paper.
本文的内容主要分为六章，分别阐述了晶闸管中频感应电源的工作原理、主电路设计、控制策略、控制系统实现、试验结果和结论。
This paper is divided in six chapters, including the medium frequency power supply of thyristor's theory, design, regulation strategy, control system, experiments and conclusion.
本文研究了三相感应电动机软起动器，主电路由三组反并联的晶闸管构成。通过控制晶闸管的触发角，可降低三相感应电动机定子电压，从而达到抑制起动电流冲击的目的。
The principle of the soft starter is reducing the voltage applied to the stator of the induction motor by control the triggering angle of the thyristors in order to limit the starting current surge.
本文研究了三相感应电动机软起动器，主电路由三组反并联的晶闸管构成。通过控制晶闸管的触发角，可降低三相感应电动机定子电压，从而达到抑制起动电流冲击的目的。
The principle of the soft starter is reducing the voltage applied to the stator of the induction motor by control the triggering angle of the thyristors in order to limit the starting current surge.
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