ADC0809电压检测数码管显示(毕业论文)（可编辑）.doc

ADC0809电压检测数码管显示(毕业论文)
编号:
(单片机综合设计实训)
实训论文说明书
题目: ADC0809电压检测院(系): 信息与通信学院专业: 电子信息工程
学生姓名: 学号: 指导教师:2013年12月 30 日
摘要
为了适应当今社会的需求,我校积极培养学生的动手能力和实践创新能力。通过实训使学生学到电子产品的工艺设计知识。并通过真刀真枪的电子产品制作,使学生了解电子产品制作过程、熟悉电子产品工艺,掌握制作电子产品的操作技能,为了进一步学习和应用奠定基础。它不仅能使学生巩固模电、数电以及单片机三大技术,更能把动手实践糅和在一起,真正实现培养高素质、高层次、多样化、创造性的人才培养目标。
本次实训内容为数字电压表,数字电压表是利将被测模拟量转换成数字量,并用数字方式显示测量结果的电子测量仪表。通常数字电压表都采用A/D转换集成电路来采集电压,它具有测量精度高,读数方便,在体积、重量、耗电、稳定性及可靠性等方面性能指标均明显优于指针式万用表。其中,A/D转换器将输入的模拟量转换成数字量,通过单片机控制按规定的时序将A/D转换器中各组模拟开关接通或断开,保证A/D转换芯片ADC0809并通过数码管显示电压值,本次实训任务设计一个数字电压表,能够测量0?25V之间的直流电压值。通过四位数码循环显示8路电压。
关键字:数字电压表、数码管显示、AT89S52、ADC0809
Abstract
In order to meet the needs of today's society , our school actively cultivate the abilities of students and practice innovation. Through the training process designed to enable students to learn the knowledge of electronic products. And production of electronic products through a shooting , so that students understand the production process of electronic products , electronic products familiar process , master production skills of electronic products , in order to lay the foundation for further study and applicationIt not only enables students to consolidate analog circuit, digital circuit and three single-chip technology, and more able hands-on practice and blends together to truly cultivate high-quality , high-level, diverse , creative personnel training objectives .The training content for the digital voltmeter, digital voltmeter is favorable to convert the measured analog to digital and digitally display the measurement results of electronic measuring instruments. Typically digital voltmeter are used A / D converter IC to collect voltage, which has high accuracy , easy reading , in terms of size, weight , power consumption , stability and reliability performance indicators are significantly better than the multimeterWhich , analog A / D converter converts the input into a digital, single-chip control as required by the timing of each set of analog