方向开关

This thesis contributed to the comprehensive study of the Finite-Difference Time-Domain method and its application to the numerical computation of radiated electromagnetic fields in switched mode power supplies. The work includes mainly three parts: the study on the performance of PML absorbing boundary condition applied to pseudo low frequency electromagnetic problems; the validation of the FDTD method with PML absorbing boundary conditions and the corresponding computer software based on the numerical study of the electromagnetic field of an electric dipole antenna, and its application to the numerical computation of radiated electromagnetic fields in switched mode power supplies; the development of an improved alternating direction implicit finite-difference time-domain method.

在综合前人工作基础上，本文对时域有限差分法及其在开关电源辐射电磁场数值计算中的应用进行了系统的分析和研究，其核心内容包括：伪低频电磁场数值计算中PML吸收边界条件性能的研究；基于基准问题—电偶极子天线三维辐射电磁场，验证了本文构造的基于PML吸收边界条件的三维FDTD法及其计算软件，并应用于高频开关电源辐射电磁场的数值分析；提出了一种改进的交替方向隐格式时域有限差分法。

According to the principle of A-O interaction and quartz′s different characteristic in the direction of parallel and perpendicular acoustics field, with a quarter-wave plate being inserted in an AO Q-switch Nd∶YAG laser cavity between mirror and Q-switch, AO Q-switch′s Bragg diffraction efficiency formula is put out theoretically. Consequently, the conclusion has been drawn by calculating simulation that the ability of a single AO Q-switch′s switching CW Nd∶YAG laser is increased.

结合声光相互作用理论和声光介质熔石英在平行和垂直于声场的两个方向具有不同声光优值的特性，理论推导了腔内引入四分之一波片后声光Q开关的布喇格衍射效率公式，计算模拟得出引入四分之一波片能够有效地提高声光Q开关关断连续Nd∶YAG激光的能力。

According to the principle of A-O interaction and quartz＇s different characteristic in the direction of parallel and perpendicular acoustics field, with a quarter-wave plate being inserted in an AO Q-switch Nd : YAG laser cavity between mirror and Q-switch, AO Q-switch＇s Bragg diffraction efficiency formula is put out theoretically.

结合声光相互作用理论和声光介质熔石英在平行和垂直于声场的两个方向具有不同声光优值的特性，理论推导了腔内引入四分之一波片后声光Q开关的布喇格衍射效率公式，计算模拟得出引入四分之一波片能够有效地提高声光Q开关关断连续Nd：YAG激光的能力。

The thesis contains five chapters. The first chapter summarizes the development and research of switched reluctance drive, discusses the main research direction, and explains the main work in this paper. In chapter 2, hardware system which includes the design of power converter and various control circuit is discussed. TMS320LF2407 DSP is used to design the hardware circuits of SRM control system, and design details including the current detection, position sensing, fault protection, speed detecting, keyboard and display etc. are provided. Because of the full use of the abundant peripheral resources of DSP, it comes to the aim simplifying the circuit structure and heightening the reliability. In chapter 3, the application of neural network on SRM control system is introduced, a new the application of neural network and the method of sampling is proposed and a simulation system based on Matlab/Simulink is established. Chapter 4 discusses the routine designing issue. Because the modularized programming method is adopted, and multi-interrupt processing technique is used, operation efficiency of the control software is highly raised. At last, the foregoing SRM control system is tested. Speed adjustment is realized, and other targets on the research and design of SRM control system are reached, which establishes a good foundation for further research.

本文共分五章，第一章概述了开关磁阻电机调速系统(Switched Reluctance Drive，简称SRD)及其发展和研究现状，论述了其主要研究方向，并说明了本文的主要工作；接下来的一章主要讨论了SRM的硬件系统，主要包括功率变换器的设计和各种控制电路的设计，本文以TMS320LF2407为核心设计了开关磁阻电机控制系统硬件电路，给出了包括电流检测、位置检测、故障保护、测速电路及键盘和显示电路等部分电路的详细设计，充分利用了DSP的丰富外设资源，达到了简化电路结构、提高运行可靠性的目的；第三章介绍了人工神经网络在开关磁阻电机控制系统中的应用，提出了一种新的应用方式(利用GPFN神经网络调节PI参数)以及如何采取样本，搭建了基于Matlab/Simulink的仿真系统；在第四章中，讨论了开关磁阻电机控制软件的设计，采用模块化编程方法，采用基于多中断的控制程序，提高了控制软件的效率；最后，对所设计的开关磁阻电机控制系统进行了实验，实现了电机调速，达到了开关磁阻电机控制系统研究和设计的预期目标，为更近一步研究打下了基础。

The invention discloses a double-temperature double-chamber light wave sterilizing cabinet, which comprises the following parts: box, low-temperature chamber and high-temperature chamber in the box and control device, wherein the upper baffle rack is set in the low-temperature chamber, one lower baffle rack is set in the high-temperature chamber, the screen and keyboard are set on the box, the low-temperature chamber possesses first door with drawer switch and the high-temperature chamber possesses second door with drawer switch, the knife and fork rack is set on the bottom of first door, whose extending direction is vertical the door, the rotary lamp rack of ultraviolet tube is set in the low-temperature chamber, the light wave generating device is set in the high-temperature to emit light wave.

一种双温双室光波消毒柜，包括一箱体、设置在箱体内的低温室和高温室、控制装置，该低温室中设有一上隔物架，该高温室中设有一下隔物架，在箱体的上部依次设有显示屏、按键；该低温室具有抽屉式开关的第一门体，该高温室具有抽屉式开关的第二门体；在第一门体的底部设有一拉伸方向与门体拉伸方向垂直的、可以从左右两侧拉出的刀叉架；在该低温室内设有一设置有紫外线灯管的旋转灯架，在该高温室内设有一用于发射光波的光波发生装置。本发明消毒柜，使用范围广泛，功能齐全，消毒效果好。

To prevent the power supply connected to a wrong direction, the user first powered on, first open the manual to semi-open position, check the instructions at the plate by electric switch direction and consistent with the direction the Check Valves valve can be closed.

为防止电源接通是方向搞错，用户在第一次接通电源后，先启开手动至半开位置，在按电动开关检查气动蝶阀指示盘方向与阀门闭方向一致即可。

A control device (14) includes means for outputting a request signal to an electornic key (12) in response to the ON operation of a predetermined switch start switch (70 among a plurality of switches (winker switch, horn switch, etc.) arranged in the vicinity of a user who has sat on the driver seat of the vehicle (100B) request signal generation means (80, a transmission circuit (46), and a transmission antenna (72), means for detecting a response signal from the electronic key (12) a reception circuit (44 and response signal matching means (82), and monitoring means (84) for outputting a lock release instruction to a actuator (64) when the response signal shows that the request is from a regular user.

要约 一种控制装置(14)包括：响应安置在坐在车辆(100B)的驾驶员座位上的用户附近中的多个开关(方向灯开关、喇叭开关等)的预定开关启动开关(70的ON操作而将请求信号输出到电子密钥(12)的装置请求信号产生装置(80传输电路(46)和传输天线(72)；用于检测来自电子密钥(12)的响应信号的装置接收电路(44、和响应信号匹配装置(82)；以及用于当响应信号显示请求是来自正常的用户时将锁定释放指令输出到执行器(64)的监测装置(84)。

Placing the switch such that the direction of switch operation is vertical, a static load of 3 kgf shall be applied in the direction of stem operation for a period of 60 seconds.

开关的动作方向为垂直放置开关，在推柄动作方向施加 3 KG的静负荷，60秒时间

Experiment 1. Observation of electron beam deflection in the electric field Will voltage electron beam deflection plate to tie the direction switch "is" location, rotating clockwise direction deflection plate voltage Potentiometers (RP2), the electron beam is deflected upward, the greater the voltage between the deflection plate, the electron beam deflection angle the bigger.

实验一。观察电子束在电场中的偏转将电子束偏转板电压方向开关扳到&上正&位置，顺时针方向旋转偏转板电压电位器(RP2)，电子束则向上偏转，偏转板之间电压越大，则电子束偏转的角度越大。

Will voltage electron beam deflection plate to tie the direction switch "is" location, rotating clockwise direction deflection plate voltage Potentiometers (RP2), the electron beam is deflected upward, the greater the voltage between the deflection plate, the electron beam deflection angle the bigger.

实验一。观察电子束在电场中的偏转将电子束偏转板电压方向开关扳到&上正&位置，顺时针方向旋转偏转板电压电位器(RP2)，电子束则向上偏转，偏转板之间电压越大，则电子束偏转的角度越大。

Methods: Five patients with parkinsonism or dystonia were assigned to general anesthesia using an modified endotracheal tube.

本实验依照人体实验之相关规定进行，五位患有帕金森氏症或肌张力异常的病人接受神经立体定位手术。

If you can benefit from this book, it is our honour.

如果您能从本书获益，这将是我们的荣幸。