电压频率转换电路设计报告.doc

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1、.文理学院芙蓉学院课程设计报告课程名称：电子设计制作与工艺实习专业班级：自动化01班学号（7位）学生：鹏指导教师：戴正科完成时间：2013年6月21日报告成绩：评阅意见：评阅教师日期..电压频率转换电路..绪论随着电子技术和计算机技术的迅速进步，工业自动化得到了快速发展，而在工业控制领域，检测传感器件起着越来越重要的作用，各种先进的传感器正在大量应用。但是很多传感器只提供4～20mA或者0～5V的直流模拟信号输出，而我国煤矿使用的煤矿安全监测系统大部分只允许接入1～5mA或者200～1000Hz的模拟信号，所以在一般工业现场使用的传感器要实现在

2、煤矿的应用，除了考虑防爆因素外，还必须进行输出模拟信号的转换。这种输出信号的转换如果购买专用的转换设备，不仅价格高，使用也不是很方便。实际上自己设计制作一些转换电路也可以方便的实现所需性能。..IntroductionAstheelectronictechnologyandtherapidprogressofcomputertechnology,industrialautomationhasbeenrapiddevelopment,andinthefieldofindustrialcontrol,detectionsensorplaysamor

3、eandmoreimportantrole,avarietyofadvancedsensorsarealargenumberofapplications.Butmanysensorsprovideonly4~20ma,or0~5vdcanalogsignaloutput,andtheuseofcoalminesafetymonitoringsystemincoalminesmostonlyallowaccessof1~5maoranalogsignalsfrom200~1000hz,soingeneralindustrialfieldusese

4、nsorstorealizetheapplicationincoalmine,inadditiontoconsiderexplosion-prooffactor,alsohastobeoutputanalogsignalconversion.Theoutputsignalconversionifbuydedicatedconversionequipment,notonlythepriceishigh,theuseisnotveryconvenient.Designsomeconversioncircuitcanalsobeconvenientt

5、oyourselfactuallyrequiredfortheimplementationoftheperformance.....目录第一章.题目·································2第二章.引言································2第三章.系统设计原理容及要求···············33.1设计目的·····································33.2设计要求····································33.3系统设计原理

6、及容···························33.3.1设计思想··································33.3.2..电压/频率转换器原理框图··················43.3.3各模块方案设计···························51.积分器的设计方案································52．比较器的设计方案································73.单稳态触发器设计方案·························

7、···84.低通滤波器设计方案·····························103.3.4模块的整合·······························11第四章.元件清单·······························13第五章.心得体会································14第六章．参考文献································15..第一章．题目电压/频率转换电路的设计第二章．引言本实验是对信号的产生、处理及变换功能电路的设计，在实际生产和操作中有这

8、广泛的应用。本设计是在大二学生学习完《电路》、《电子线路（线性部分）》《信号与系统》等专业课程之后进行的，具有可操作性和应用性，学生能够独立完成。电路