project3

QuizMaster for viusal basic.

软件是一款基于Microsoft Visual Basic 软件开发的物理化学实验数据处理软件，共分为八个实验，分别是”恒温槽的装配与性能测试”，“液体的饱和蒸汽压测定”，“双液系气液相平衡图的绘制”，“蔗糖转化反应速率常数的测定”，“电动势测定及应用”，“乙酸乙酯皂化反应动力学”，“最大气泡法测定液体表面张力”，“吊环法测定液体表面张力”。(Software is a Microsoft Visual Basic software development based on the physical and chemical experimental data processing software, is divided into eight experiments are " bath assembly and performance testing" , " liquid saturated vapor pressure measurement" , " two-fluid system phase equilibrium diagram drawing " ," invertase reaction rate constants measured, " " Determination and application of force " ," ethyl acetate saponification reaction kinetics " ," Determination of the maximum bubble liquid surface tension, " " Determination of the rings liquid surface tension. " )

AOK虚拟示波器的上位机源码，从串口获取下位机数据，然后绘制波形(AOK virtual oscilloscope host computer source, from the serial access to the next machine data, and then draw the waveform)

带图标的菜单 Visual basic开发的很简单的小程序，功能很单一，适合初学者使用(icon menu with Visual basic development of the small simple procedures, functions very single, for beginners)

说明：  一本较好的VB教程，主讲上位机编程，相信大家会喜欢的。(A better VB tutorials, keynote host computer programming, I believe you will like.)

实用CAN与上位机通讯例程，适用于基于CAN总线的自动系统参考。(Practical CAN and PC communication routines for automated reference system based on CAN bus.)

单片机通信，vb与18b20温度传感器通信资料，包括上位机和下位机程序(Single-chip communication, vb and 18b20 temperature sensor communication data, including upper and lower machine program)

利用ULN2003A进行驱动，产生PWM波，里边有照片，可供参考，通过本例程了解PWM 的基本原理和使用 (#include <reg52.h> unsigned char timer1 sbit PWM=P1^2 void system_Ini() { TMOD|= 0x11 //PWM TH1 = 0xfe //11.0592 TL1 = 0x33 TR1 = 1 IE =0x8A } main() { system_Ini() while(1) { if(timer1>100) timer1=0 if(timer1<30) PWM=0 else PWM=1 } )

学习电子电路，很好的参考资料，可以学到很多东西。(Learning electronic circuits, a very good reference, you can learn a lot.)

无线信道时延扩展仿真 一、仿真目的 　　　在数字通信中，无线信道所表现出的时延扩展将有可能引起接收信号的码间串扰。实验的目的是从时域角度方面对移动信道的多径环境引起的接收信号时延扩展现象进行仿真。(wireless channel delay spread simulation One, the simulation purpose In digital communication, wireless channel delay spread shown will likely cause the received signal crosstalk code. The aim of the experiment is to delay the received signal due to multipath environment of mobile channel in time domain and the phenomenon of simulation.)