硬件

And due to the nature of the data acquisition, three data acquisition circuit board are adopted. They are voltage to digit data converting circuit board, current to digit data converting circuit board and digit data input/output circuit board. These circuit boards are used to acquire the main running parameter of the multifunctional experimentation equipment and to control the output of alarm message.The monitor and control program is developed on Delphi5.0 which is an excellent product of Borland Corp.

数据监控系统的硬件以一台工业控制PC机为核心，并根据采集信号的性质配置了电压-数字量转换板、电流-数字量转换板及开关量输入／输出板，对实验台的主要运行参数进行采集并进行报警控制；监控系统的软件以BORLAND公司的Delphi5.0作为开发平台，采用了面向对象的设计方法，运用了多线程、数据库等技术，做到了界面美观、操作方便。

By example analysis and experiment result compare,it introduces the usage and peculiarity of Multisim 2001 software platform of EDA technology in design type of experiment study on digital circuits,the advantages and disadvantages of EDA technology experimenthave been compared with actual operation,the important of combining"imitation experiment"and"material experiment"in design type of experiment of digit circuit teaching is put forward in this paper.

目前，国内高校的数字电路实验教学模式主要以2种方式进行：一种是完全采用常规的TTL逻辑器件(如逻辑门、触发器等中小规模集成电路)进行硬件连线测试，大多采用面包板或由多个双列直插座组成的各种实验箱。这种方式容易出现器件接触不良，接线不慎而烧坏芯片、电源等故障，学生实验课时得不到有效利用，影响对学生综合设计性实验能力的培养与提高。

According to the demand of high magnetic field power supply, reference is increased with a set ramp rate and stops at a set stable value, so reference system is composed of digital setting and digit to analog converting circuit. But the stability of reference is mostly guaranteed by the performance of D/A circuit, so D/A circuit is particularly studied in reference system. The scheme of D/A circuit, the selection of DAC and its voltage reference, hardware anti-jamming design and PCB design are discussed in detail, and software of remote control and PLC are discussed in brief. Zero-flux DC current transformer well satisfies the demands of the high stability of Load current detection unit, so the principle of zero-flux DC current transformer is analyzed; in the mean time a project which detects the long term stability is designed. During 8 hours, analog signal which is detected with high precision digit multimeter is recorded in computer at 1HZ frequency by GPIB communication. The drift error source and related parameters are explained in the compare-amplify part. Detailed subtraction circuit is designed; also amplifier chip and periphery components are selected and verified according to the theory of error analysis.

根据强磁场电源的需求，参考源应按照软件设定的斜率逐渐上升到设定稳态值，则参考源系统应由数字给定和数模转换电路两大部分组成，而参考源的稳定度主要依靠完成数模转换功能的模拟电路的性能来保证，因此本文对参考源系统的研究以数模转换电路为重点，分别从电路方案的确定、数模转换芯片及其基准电压源的选取和验证、电路板硬件抗干扰和PCB设计几方面进行了论述，然后对数字给定部分的远控组态和PLC程序设计作了简要介绍；采用零磁通原理的直流电流转换器很好地满足了对负载电流检测单元高稳定度的需求，本文详细分析了零磁通检测的原理，并在选定此种类型电流转换器的基础上设计了一套检测长期稳定度的方案，8小时内以1秒为采样周期，通过计算机Labview程序和高精度数字电压表的GPIB通讯，将被高精度数字电压表数字化后的模拟信号采样值连续记录至计算机中；比较放大环节简要阐述了漂移产生的原因和相关参数指标，确定了具体的减法电路形式，并根据误差分析理论对运算放大器和外围元器件进行了选取和验证。

My name is XX,24 years old,Koreaner,and graduated from XX major on july this year.i have dad ,mom,and sister in my family.father is a worker in a airport,while mother is a teacher.i grew up at such traditional family,so parents were strict with me,they tought me much.until graduation from high school,I was able to enterYanbian University without parents' care.instead of feeling reluctant to part with parents,I was imvolved in new life rapidly.because of my lively personality and easy-going,teachers and classmates spoke highly of me.at other times,I loved reading and searching information in the internet.morover,I reinforced own Korean,english and computer competency continuously,took advantage of two years to study korean in the opportunity class,and then met many foreign friends to proceed mutual learning as partners.over my four-studing out of home,I cultivated strong characteristic,which made me overcome many difficulties from studying nad living.i majored in education technology ,the professional subjects contain three aspects about hardware and software on computer,education and use of multimedia,for example,OFFICE software,IMAGE-PROCE ING software,NLE software and various computer language,data organization,digit circuit,education,educational psychology,distance learning etc.i valuing practice often do come part-time jobs to accumulate some social practice experiences by making use of outside school hours ,except for the basic curriculums in the school.in my leasure time,I often go sporting,such as mountaineering,swimming,riding bicycle and so on,as well as paricipation some activities organized by sc

我叫XX，今年24岁，朝鲜族，今年7月毕业于XX专业。家庭成员有爸爸、妈妈和姐姐，父亲是一名飞机厂工人，母亲是一名人民教师，从小在这样传统的家庭中成长，父母对我的管教也很严格，教会了我许多做人的道理。直到高中毕业，离开父母呵护的臂膀来到了延边大学，没有对家的恋恋不舍，而是很快的融入到了新的生活中，由于我的性格活泼开朗并且随和，老师和同学们对我的评价也都非常好，平时我喜欢看书和上网浏览信息，另外不断加强自身的韩国语、英语和计算机能力，利用两年时间在补习班学习了韩国语，并认识了许多外国朋友结成partner互补学习，在外求学的四年中，我养成了坚强的性格，使我克服了许多学习上和生活中的一些困难。我的专业是教育技术学，专业课程包括计算机的硬件及软件、教育学和多媒体的使用三大方面。OFFICE软件、图象处理软件、非编软件以及各种计算机语言数据结构，数字电路，教育学、教育心理学、远程教育等。注重实践的我除了学校的基本课程外，经常利用课余时间做一些兼职以积累一定的社会实践经验，平时还喜欢做一些运动，例如登山、游泳、骑自行车等，并经常参加学校里组织的一些活动。开朗乐观是我对待生活的态度，吃苦耐劳是我对待工作的原则。

Using MK- 801 double board computer and digit to anolog interface circuit as hardwar, de-sign and a set of temperature autocortrol system , sassociating with DWK- 702 instrument of tempera-ture fine control, applying to production technique of T1 -superrconductors and making this automa-tize.

采用MK－801双板计算机及其数模接口电路为硬件，设计并制造一套温度自动控制系统，联合DWK－702精密温度控制装置，对T1系超导材料的烧制过程进行自动控制，使这一过程自动化、程序化、并提高了温度控制精度。

Circuit of digital imaging cassette has been designed basing on CMOSimage sensor, several bulk-storage FLASH and CPLD.

设计了基于CMOS图像传感器、大容量闪存和CPLD的数字影像暗盒硬件电路。

It provides with a program design of the digital clock both on hardware and software in this paper.

因此，在此基础上进行了数字电子钟设计的工作，给出数字电子钟的软件和硬件的设计。

At last, this paper studies on the digital control hardware and software system on the TMS320F2812 DSP.

最后，本文研究了基于TMS320F2812 DSP的数字控制硬件系统和软件系统。

In the aspect of hardware, this paper uses the digital signal processor to speed up the algorithm.

在前面理论分析的基础上，完成了三相电能质量分析仪的硬件和软件设计。

The hardware simulation model based on dual digital signal processor is also presented.

并建立了基于双DSP的硬件仿真模型。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。