基于单片机的电机转速测量系统附图及源程序学位论文.doc

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1、毕业设计（论文）说明书摘要在工程实践中，经常会遇到各种需要测量转速的场合，测量转速的方法分为模拟式和数字式两种。模拟式采用测速发电机为检测元件，得到的信号是模拟量。数字式通常采用光电编码器，霍尔元件等为检测元件，得到的信号是脉冲信号。随着微型计算机的广泛应用，特别是高性能价格比的单片机的出现，转速测量普遍采用以单片机为核心的数字式测量方法。本文便是运用AT89C51单片机控制的智能化转速测量仪。电机在运行过程中，需要对其进行监控，转速是一个必不可少的一个参数。本系统就是对电机转速进行测量，并可以和PC机进行通信，显示电机的转速，并观察电机运行的基本状况。本设计

2、主要用AT89C51作为控制核心，由霍尔传感器、LED数码显像管、HIN232CPE电平转换、及RS232构成。详细介绍了单片机的测量转速系统及PC机与单片机之间的串行通讯。充分发挥了单片机的性能。本文重点是测量速度并显示在5位LED数码管上。其优点硬件是电路简单，软件功能完善，测量速度快、精度高、控制系统可靠，性价比较高等特点。关键字：MSC-51（单片机）；转速；传感器1毕业设计（论文）说明书AbstractIntheprojectpractice,wewillmeeteachkindtoneedfrequentlytosurveytherotationa

3、lspeedthesituation,thesurveyrotationalspeedmethoddividesintothesimulationtypeandthedigitaltwokinds.Thesimulationtypeusesmeasuredthatthefastgeneratoristhedetectingelement,obtainsthesignalsimulatesthequantity.Digitalusuallyusestheelectro-opticalencoder,theHallpartandsoonisthedetecting

4、element,obtainsthesignalisthesignalimpulse.Alongwithmicrocomputer'swidespreadapplication,speciallyhighperformancepricecomparedtomonolithicintegratedcircuit'sappearance,thetachometricsurveyusesgenerallytakethemonolithicintegratedcircuitasthecoredigitalmeasuringtechniqueIgraduatedfrom

5、theDesignoftheissueiscontroloftheintelligentuseofSCMspeedmeasuringinstrument.Thesystemisthemotorspeedmeasurement,andPCandcancommunicatethatthemotorspeed,andtoobservethemotorrunningthebasicsituation.ThemaindesignAT89C51controlasthecore,bytheHallsensor,LEDdigitalCRT,HIN232CPE-levelcon

6、version,andaRS232.DetailedmeasurementsofthespeedoftheSCMsystemandPCandtheserialcommunicationbetweenthemicrocontroller.GivefullplaytotheperformanceoftheSCM.ThispaperistomeasurethespeedanddisplayedinfiveLEDdigitalpipe.Theadvantageofasimplehardwareandsoftwarecapabilitiesimprove,measuri

7、ngspeed,highprecisionandcontrolsystemreliable,cost-effectiveandsoon.Keyword：MSC-51(One-chipcomputer)；sensor；Tachometer2毕业设计（论文）说明书目录摘要..............................................................................................................1Abstract..............................

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