文档介绍：课程设计(论文)说明书
题目:简易电阻电容电感测量仪
院(系): 信息与通信学院
专业: 信息对抗技术
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摘要
随着电子工业的发展,电子元器件急剧增加,电子元器件的适应范围也逐渐广泛起来,在应用中我们常常需要测量电阻的大小。因此,设计可靠,安全,便捷的电阻测量仪具有极大的现实必要性。
而单片机是目前设计应用中用得比较广泛的器件,它可以通过软件编程来达到不同的效果,实现各种各样的不同功能,具有灵活性强,可靠性高,可扩展性好等优点。
在系统硬件设计中,以MCS-51单片机为核心的电阻测量仪,将电阻使用振荡电路转化频率实现参数的测量。电阻是采用555多谐振荡电路产生,将振荡频率送人STC89C52的计数端口,通过定时并且计数可以计算出被测频率,在通过该频率计算出被测参数。
关键词:单片机;555多谐振荡电路
Abstract:
With the development of electronic industry,ponents rapidly increased the scope of ponents widely up gradually,in applications we often measured resistors,capacitors,inductors size. Therefore,the design of reliable,safe,convenient resistance,capacitance,inductance tester of great practical necessity.
And the microcontroller is the device that uses extensively in the designs application currently,it can attain the different result by the pile,carryingout different kinds of functions,have advantages of good dexterity,high credibility,can expand good and so on.
In the system hardware design,take the MCS-51 monolithic integrated circuit as the core resistance,the electric capacity,the inductance reflectoscope reflector,the resistance,the electric capacity,the inductance,the use correspondence's oscillating circuit transforms for the frequency realizes each parameter the resistance and the electric capacity are use 555 multiresonant circuits to produce,the oscilation frequency will send STC89C52 the counting to be neat,through and fixed time counts may calculate by the frequency measurement rate,figures out again through this frequency meter is measured the parameter.
Key words: Microcontroller; 555 resonance swings circuit
目录
引言………………………………………………………………………4
1 设计功能及要求………………………………………………………6
2 电阻测试仪的系统设计………………………………………………6
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3 系统硬件电路设计……………………………………………………7
STC单片机及显示电路的设计……………………………………………………7
555多谐振荡电路的设计…………………………………………………………8
555定时器简介………………………………………………………