毕业设计（论文）-电容数字测量仪--.doc

毕业设计
课题名称电容数字测量仪
学生姓名
学号
院(系)、专业
指导教师
职称
摘要
随着科技的不断发展,人类的不断进步,在电子技术领域的发展可谓突飞猛进,然而电容器在电子线路中得到广泛的应用,它的容量大小对电路的性能有着重要的作用。因此,电容量的测量在日常使用中就不可避免
而目前电容量的测量仪器——电容测量仪的应用越来越广泛,电容测量仪在越来越高,而目前,电容测量仪的应用现状是:品种多样,技术含量高。如:YD2612A/12B电容测量仪,它有着良好的测试稳定性,抗冲击能力强。如:TH2615系列电容测量仪,它是一种易操作、智能化的电容测量仪,仪器价格低,测试速度快。如:多频HF2617电容测量仪,它的可靠性稳定性强,测量显示直观,适用性好。本系统设计主要采用555集成定时器构成多谐振荡器、单稳态触发器等电路把被测电容的电容量转换成电压量,7107—A\D转换器把电压量转换成数字量并显示,从而实现电容测量。
我们有理由相信,随着科技的不断发展,在电子技术领域里,电容量的测量仪器——电容测量仪将得到越来越广泛的应用;电容测量仪也将向着更合理,更科学,更适用的方向不断向前发展!

关键词:多谐振荡器、555集成电路、数码管
Abstract

With the continuous development of science and technology, human progress in the field of electronic technology development is rapid, However capacitors in electronic circuits were widely used, its capacity size of the circuit performance plays an important role. Therefore, the capacitance measurements in the day-to-day use will be unavoidable.
And the current capacity gauges -- capacitance measuring instrument widely used, Capacitance measurement instrument in the development of domestic and international high level ever, and the current, capacitance measurement instrument of the status quo : The types and high technological content. Such as : YD2612A/12B capacitance measurement device, it has good test stability, strong impact. Such as : TH2615 series capacitance measuring instrument, it is a simple operation, and high-capacitance measurement instrument, Low prices equipment, testing speed. Such as : HF2617 multi-frequency capacitance measurement instrument, and its reliability is stable measurements revealed intuitive, good applicability. The main system design using 555 timers Multivibrator. monostable multivibrator circuit put the measured capacity capacitor voltage conversion volume, then the volume 7107-A\D voltage converter voltage conversion put into digital and showed that achieve capacitance measurement.
We have reason to believe that with the continuous development of science and technology in electronic t