此文档是毕业设计外文翻译成品（ 含英文原文+中文翻译），无需调整复杂的格式！下载之后直接可用，方便快捷！本文价格不贵,也就几十块钱！一辈子也就一次的事！外文标题：Design of Two-channel Oscilloscope and Basic Circuit Simulations in LabView外文作者：Plamen Balzhiev(1) and Jaroslaw Makal(2)文献出处: Proceedings of SPIE - The International Society for Optical Engineering October 2018 (如觉得年份太老，可改为近2年，毕竟很多毕业生都这样做)英文2222单词，14668字符(字符就是印刷符)，中文3650汉字。（如果字数多了，可自行删减，大多数学校都是要求选取外文的一部分内容进行翻译的。）Design of Two-channel Oscilloscope and Basic Circuit Simulations in LabViewINTRODUCTIONThe project is realized as a diploma thesis in Bialystok Technical University (Poland). The main aim is to develop a useful educational tool which presents the time and frequency characteristics in basic electrical circuits. It is designed as a helpful instrument for lectures and laboratory classes. The predominant audience will be students of electrical engineering from first semester of the higher education. Therefore the level of knowledge at this stage of education is not high enough and different techniques are necessary to increase the students interest and the efficiency of teaching process. This educational instrument provides the needed knowledge concerning the basic circuits and its parameters. Graphics and animations of the general processes in the electrical circuits make the problems more interesting, comprehensive and easier to understand.For designing such an instrument the National Instruments programming environment LabView is used. It is preferred to the other simulation software because of its simplicity flexibility and also availability (the free demo version is sufficient to make a simple virtual instrument). LabView uses graphical programming language and has powerful mathematical functions for analysis and simulations. The useful visualization tools for presenting different diagrams are worth recommending, too. It is also specialized in measurement and control and it supports a wide variety of hardware. Therefore this software is suitable for laboratory classes to present the dependencies between the simulated characteristics in basic electrical circuits and the real one measured with the hardware device. For this purpose a two- channel oscilloscope is designed as part of the described project. The main purpose of this instrument as part of the educational process is to present the desired characteristics of the electrical circuits and to become familiar with the general functions of the oscilloscope. This project combines several important features appropriate for teaching purposes well presented information with graphics, easy to operate with and giving the necessary knowledge. This method of teaching is more interesting and attractive to the audience. Also the information is assimilated more quickly, with less effort.1.PROJECT REALIZATION1.1.SIMULATION OF BASIC CIRCUITS IN LABVIEWThe simulation consists of presenting the time dependencies of voltage and current in basic electrical circuits. For mathematical representation of the circuits the voltage-current equations (1) over the passive elements resistor R, inductor L, capacitor C, are used (Fig.1).Fig.1 The simulated RLC serial circuit.In the frame of this project the following circuits are simulated: single elements R, L, C; RL, RC, RLC serial and parallel. However for realization of the circuits there is a difference between the simulations for the various types serial or parallel. Different sources should be applied in order to follow the same mathematical pattern of this project. In parallel circuits the voltage source is used and then currents are calculated, on the other hand in serial circuits the current source is applied and voltages are resulted. For this part the difference in simulations of electrical circuits is not a big problem because it is sufficient to present only the phase offset between voltage and current, their amplitudes and how they vary in the term of elements parameters (resistance, inductance, capacitance) and frequency.According to the equations (1) for their realizations in the block diagram the following mathematical and control functions are used: integration and derivation, signal generation and front panel control functions.Fig.2 The modules used in the simulation instrument.Integration and derivation are very easy applied functions in LabView. It is only needed to set the proper initial and final conditions (Fig. 2). The input signal has a form of discrete samples as one-dimensional array. Also signal generation is easily realized with single block. We should set only the values of frequency, amplitude and phase 1.The block diagram of the simulation instrument (Fig. 3) consists of three major parts signal generation (A), circuit analysis (B) and front panel control (C).Fig.3 Block diagram of basic circuits simulation tool.Part (A) implements the generation of various signals: sinusoid, square, triangle, sawtooth and DC. The choice is realized by