基于 Multisim 和 LabVIEW 的虚拟电子称
针对目前应变式传感器教学环节中存在的设备落后、缺乏生动形象的实验手段、与实际工程应用脱节等问题，
把电路仿真软件 Multisim 用于教学实践，设计电阻应变片的测量电路，用压控电阻模拟被测重量， 获得输出电压与被测重
量的关系式。在 LabVIEW 软件平台上，不使用数据采集卡的前提下，实现简易虚拟电子称的功能
： In light of some problems existing in the current strain sensor teaching ， such as outdate equipments ， inflexible
laboratory facilities and formalistic experiment separated the actual engineering application ， the circuit simulation software
Multisim was adopted in the experimental teaching ， the strain gauge measurement circuit was designed and the relational expres⁃
sion of the output voltage and the measured weight was obtained by simulating the goods weight with voltage⁃ controlled resistor.
The function of a simple virtual electronic scale was realized in the LabVIEW software platform without application of data acqui⁃
sition card. In teaching practice ， the virtual electronic scale designed with Multisim and LabVIEW can save the hardware re⁃
source ， help students to understand the theoretical knowledge further ， and improve the quality of course experimental teaching
obviously.
Keywords： strain⁃ gage sensor ； Multisim ； LabVIEW ； e (2015-01-06, MultiPlatform, 1889KB, 下载14次)
基于STM32开发板，设计周期性读取内部温度传感器值，并且用红外遥控设置读取时间间隔。显示时间间隔和当前温度。同时扩展增加了RTC时钟的显示
STM32 development board based on the design periodically read the internal temperature sensor values, and set the time interval read by infrared remote control. Display interval and the current temperature. While extending increased RTC clock display (2014-12-15, MultiPlatform, 1089KB, 下载7次)
线路通断检测器的设计：
1．用压电陶瓷蜂鸣片作为电声元件。
2．用两根导线作为测试探针
3．线路通断是通过测试电阻的大小来判断，有以下三种情况：
（1）若150Ω<Rx<900Ω，则蜂鸣片不发出声响。
（2）若Rx>900Ω或者Rx<150Ω，则蜂鸣片发出间歇式的滴－滴声响。
以上各临界阻值（150Ω和900Ω），允许误差±10％
4．＋15V直流稳压电源需要设计。
Line-off detector design:
1. Piezoelectric ceramic buzzer as the electro-acoustic components.
2. As a test probe with two wires
3. Lines off by testing the resistance to determine the size, the following three conditions:
(1) If 150Ω <Rx <900Ω, the buzzer is not audible.
(2) If Rx> 900Ω or Rx <150Ω, then the buzzer sent intermittent drip- drip sound.
Above the critical resistance (150Ω and 900Ω), tolerance ± 10
4.+15 V DC power supply need to design.
(2011-06-19, MultiPlatform, 11KB, 下载8次)
传统的数字锁相环系统是希望通过采用具有低通特性的环路滤波器，获得稳定的振荡控制数据由于数字电子技术的迅速发展，尤其是数字计算和信号处理技术在多媒体、自动化、仪器仪表、通讯等领域的广泛应用，用数字电路处理模拟信号的情况日益普遍。所以模拟信号数字化是信息技术的发展趋势，而数字锁相环在其中扮演着重要角色。
Conventional digital PLL system is to have a low-pass characteristics by using the loop filter to obtain a stable oscillation control data as the rapid development of digital electronic technology, especially digital computing and signal processing technology in the multimedia, automation, instrumentation , communications, the extensive application of digital circuits with analog signal processing is becoming more common. So analog signal digital information technology, trends, and digital phase locked loop in which play an important role. (2010-05-14, MultiPlatform, 285KB, 下载10次)
M16C/6S 群是采用64 管脚的塑模LQFP 封装的单片机。该群将电力线通信调制解调器内核（利用了Yitran
Communications Ltd公司开发的IT800PLC调制解调器技术）和模拟前端进行了单芯片化。M16C/60系列CPU内
核实现了高级别的编码效率和高速运算处理，而且，内置的IT800调制解调器内核还采用了Yitran公司的DCSK
（Differential Code Shift Keying）扩频调制方式的专利技术，可在已有的电气配线上实现速度最大为7.5kbps的高
可靠性的通信。M16C/6S符合国际标准（FCC part 15, ARIB and CENELEC bands），最适合用于AMR（Automatic
Meter Reading）或家庭自动化控制系统等各种窄带的应用程序。
M16C/6S group is 64-pin LQFP package Singlechip mold. The group will be power line communication modem kernel (using the YitranCommunications Ltd developed IT800PLC modem technology) and analog front-end of a single chip. M16C/60 Series CPU core to achieve a high level of coding efficiency and high-speed processing, and built-in modem IT800 core Yitran also adopted the company s DCSK (Differential Code Shift Keying) spread spectrum modulation of the patented technology can be the existing electrical wiring to achieve a maximum speed of 7.5kbps high reliability communications. M16C/6S in line with international standards (FCC part 15, ARIB and CENELEC bands), the most suitable for AMR (AutomaticMeter Reading), or home automation control system and other narrowband applications. (2008-11-19, MultiPlatform, 3322KB, 下载39次)
30路遥控开关,按0-30个键分别点亮p0.0-p3.5的灯,32键全灭
可以用此外接驱动后控制30路开关！ 遥控器端口p3.7
30 Road remote control switches, keys, respectively, by 0-30 months p0.0-p3.5 lit the lamp, 32-key body can also take control of 30 after the driver switch! Remote control port p3.7 (2008-09-04, MultiPlatform, 3KB, 下载17次)
C8051控制器操作SD卡实现文件系统，兼容FAT16,FAT32
C8051 controller operation SD card file system compatible with FAT16, FAT32 (2008-09-03, MultiPlatform, 27KB, 下载201次)
24c02是一个非挥发eeprom存储器器件，采用的IIC总线技术。24c02在许多试验中都有出现。24c02的应用，主要在存储一些掉电后还要保存数据的场合，在上次运行时，保存的数据，在下一次运行时还能够调出。
24C02 EEPROM is a non-volatile memory devices, used by IIC bus technology. 24C02 in many trials have emerged. 24C02 applications, mainly in the storage would also like to save some data after power-down occasions, during the last run-time, preservation of data, the next time he can run out. (2008-07-17, MultiPlatform, 2KB, 下载9次)
一 摘要
单片计算机即单片微型计算机。（Single-Chip Microcomputer ）,是 集CPU ,RAM ,ROM ,
定时，计数和多种接口于一体的微控制器。他体积小，成本低，功能强，广泛应用于智能产
品和工业自动化上。而51 单片机是各单片机中最为典型和最有代表性的一种。这次毕业设
计通过对它的学习，应用，从而达到学习、设计、开发软、硬的能力。
电信类的论文 毕业设计之用
Abstract Single-chip computer One-chip micro-computer. (Single-Chip Microcomputer), is a CPU, RAM, ROM, timing, counting and multiple interfaces in one microcontroller. His small size, low cost, powerful, widely used in intelligent products and industrial automation. And 51 single-chip single-chip microcomputer is the most typical and most representative one. The Graduation Project, through its study and application to achieve the study, design, development software and hardware capabilities. Telecom thesis graduation project for use (2008-06-05, MultiPlatform, 119KB, 下载21次)
利用一块芯片完成除时钟源、按键、扬声器和显示器（数码管）之外的所有数字电路功能。所有数字逻辑功能都在CPLD器件上用VHDL语言实现。这样设计具有体积小、设计周期短（设计过程中即可实现时序仿真）、调试方便、故障率低、修改升级容易等特点。
本设计采用自顶向下、混合输入方式（原理图输入—顶层文件连接和VHDL语言输入—各模块程序设计）实现数字钟的设计、下载和调试。
一、 功能说明
已完成功能
1. 完成秒／分／时的依次显示并正确计数；
2. 秒／分／时各段个位满10正确进位，秒／分能做到满60向前进位；
3. 定时闹钟：实现整点报时，又扬声器发出报时声音；
4. 时间设置，也就是手动调时功能：当认为时钟不准确时，可以分别对分／时钟进行调整；
5. 利用多余两位数码管完成秒表显示：A、精度达10ms；B、可以清零；C、完成暂停
可以随时记时、暂停后记录数据。
待改进功能：
1. 闹钟只是整点报时，不能手动设置报时时间，遗憾之一；
2. 秒表不能向秒进位，也就是最多只能记时100ms；
3. 秒表暂停记录数据后不能在原有基础上继续计时，而是复位重新开始。
【注意】秒表为后来添加功能，所以有很多功能不成熟！
err (2007-12-04, MultiPlatform, 662KB, 下载67次)
1.利用I/O口产生一定频率的方波，驱动蜂鸣器，发出不同的音调，从而演奏乐曲（最少三首乐曲，每首不少于30秒）
2．采用LCD显示信息
3．开机时有英文欢迎提示字符，播放时显示歌曲序号（或名称）
4．可通过功能键选择乐曲，暂停，播放。
5．选作内容：显示乐曲播放时间或剩余时间
1. The use of I/O I have a certain frequency square wave to drive the buzzer, the issue of different tones, which play music (at least 3 pieces, each not less than the first 30 seconds) 2. Using LCD display information 3. Boot-up has prompted English welcome characters, playing songs show the serial number (or name) 4. Through the function button to select the music, pause, play. 5. Selected as the content: Display the remaining time or music playback time (2007-10-28, MultiPlatform, 7KB, 下载2次)
通讯控制器项目中，由于考虑到需要扩展8个或更多串口，SCC和SMC扩展显然不能满足要求，需要需求一种新的可扩展的串口芯片
Communications controller projects, taking into account the need to expand as a result of 8 or more serial, SCC and SMC expansion obviously does not meet the requirements, the need to demand a new scalable serial chip (2007-08-06, MultiPlatform, 16KB, 下载159次)
数字电路的串扰分析在数字电路设计领域,串扰是广为存在的,如PCB板、器件封装(Package)、连接器(Connector)和连接电缆(Cable)。而且随着信号速率的提高和产品外形尺寸越来越小，数字系统总的串扰也急剧增加。过大的串扰会影响到系统的性能,甚至可能引起电路的误触发，导致系统无法正常工作
digital circuit crosstalk analysis in the field of digital circuit design, crosstalk is widely exist, such as PCB, Device Package (Package). Connector (Connector) and the connecting cables (Cable). With the increase rate signals and products getting smaller and smaller dimensions, the total number of system crosstalk also increased dramatically. Too much crosstalk will affect the performance of the system and may even lead to the misuse of trigger circuit, which makes it impossible to normal work (2007-06-13, MultiPlatform, 230KB, 下载7次)
SPCE061A是凌阳科技推出的一款16位结构的微控制器。SPCE061A内嵌32K字的闪存（FLASH），内置两路DAC，能以单芯片实现少量语音的存储、放音；非常适合于带有语音功能的产品应用。
SPCE061A Sunplus Technology is one of the launch of 16 micro-controller. SPCE061A 32 K words embedded flash (FLASH), a built-in two road DAC, able to achieve single-chip, a small amount of voice storage, audio; very suitable for carrying voice function in the product applications. (2007-05-30, MultiPlatform, 371KB, 下载11次)
本方案主要介绍了利用凌阳SPCE061A精简开发板作为控制核心，外扩64M三星NAND Flash存储器，利用SPLC501液晶显示模组显示的简易语音电子书的设计方案。该电子书不仅可以使读者看书，而且可以听书，利用我们的SPCE061A的语音功能开发出一个"趣味书屋"。
The program introduces the use of Sunplus SPCE061A streamline the development board as a core control, 64 M expansion outside Samsung NAND Flash memory, SPLC501 use LCD display module simple voice e-books design. The e-books so that readers can not only read, but can listen to, We use the voice features SPCE061A developed an "interesting book store." (2007-05-30, MultiPlatform, 307KB, 下载17次)
本文将总结我们公司所设计的各种电源电路，从中提炼出我们公司的电源平台，供大家参考。
我们通常用到的工作电压为12V和5V。12V主要用来驱动继电器工作或蜂鸣器，在本平台中将用＋12表示；5V将用＋5表示。在应用中，也用到24V和3V电源，分别用＋24和＋3表示。3V一般用在有电池做备用电源的场合。
This paper will summarize our company designed the power supply circuit, from which we extract the Power platform, for your reference. We usually use the working voltage of 12 V and 5 V. 12V Relay mainly used to drive to work or buzzer sounded, in this platform will be used+12 said. 5V will be used+5 said. In this application, also applied to 24 V and 3 V power supply, and were used+24+3 said. 3V is generally done in a standby power batteries occasions. (2007-03-10, MultiPlatform, 43KB, 下载202次)
基本模型机的设计与实现主要内容： 设计一个较为完整的计算机、并编写一些简单的指令
基本要求：
设计器材： Dais-CMH+/CMH 计算器组成原理教学实验系统一台，实验用扁平线、导线若干。
设计目的：
⒈ 在掌握部件单元电路实验的基础上，进一步将其组成系统地构造一台基本模型计算机。
⒉ 为其定义5条机器指令，并编写相应的微程序，上机调试掌握整机概念。
实现较为完整的计算机、并编写一些简单的指令。
设计目标：
本次设计将能在微程序控制下自动产生各部件单元的控制信号，实现特定指令的功能。在该试验中采用五条机器指令：IN（输入）、SUB（二进制减法）、STA（存数）、OUT（输出）、JMP（无条件转移），整体实现二进制数连续相减的功能。上机调试实现这五种指令功能。
err (2007-01-05, MultiPlatform, 37KB, 下载59次)
用C写的I2C总线EEPROM读写程序，在MSP430＋AT24C64～512平台上验证通过。对其他处理器只需简单修改即可使用。
C write I2C EEPROM read and write procedures, the AT24C64 MSP430+ ~ 512 platform validation through. The only other processor can use a simple amendment. (2006-07-25, MultiPlatform, 1KB, 下载392次)
在AVR单片机的控制下，通过WinAVR编译器和makefile的编写，在一个数码管上实时输出键盘输入的字符，当在键盘上按下某一个键时，在数码管上显示该键的值。如按下1时数码管显示1，按下F时数码管显示F。
control, through WinAVR compiler makefile and the preparation, in a real-time digital control keyboard input output of the characters, when pressed on the keyboard a button, digital tube revealed that the value of the bond. Touching 1:00 a Digital Display, when pressed F F Digital Display. (2006-07-10, MultiPlatform, 2KB, 下载12次)
基于51单片机、MAX7219和DS12887的电源开关节能控制器程序。通过按键控制，用户可以预置开启关闭电源的时间，通过LED驱动芯片MAX7219驱动数码管实现人机界面。
based microcontroller, MAX7219 and the power switch DS12887 energy-saving controller program. Through the control buttons, users can turn off the power to open preset time, by the LED driver chip digital control MAX7219 drive to achieve human-machine interface. (2006-03-31, MultiPlatform, 3KB, 下载48次)