基于磁电传感器的电机转速自动检测系统设计毕业论文设计.doc

学号： 常 州 大 学 毕业设计 （2014届） 题 目 基于磁电传感器的电机转速自动检测系统设计 学 生 虞锦培 学 院 怀德学院 专业班级 电气101 校内指导教师 李云峰 专业技术职务 讲师 二○ 基于磁电传感器的电机转速自动检测系统设计 摘 要：在工程实践中，经常会遇到测量转速的情况。因此，转速的测量具有一定的工程意义。本文开发了基于单片机的电机转速自动检测系统。选用的磁电传感器将电机的转速信号转换成电压信号，所设计的放大电路将磁电传感器输出的电压信号放大，经过整形电路将正弦信号转换为方波，由单片机进行脉冲计数，并且通过LCD显示电机的转速。 文中首先阐述了该设计的总体方案、实验的步骤，并讨论合适的测量方法。其次，介绍选用的单片机和LCD显示等电子元件，并分析电路图各部分的功能。最终，编写程序调试运行，分析实验结果。 本设计主要用单片机作为控制核心，由磁电传感器、LCD显示组成。其优点是电路简单，软件功能完善，具有测量速度快、精度高、控制可靠、性价比高等特点。 关键词：转速测量；磁电传感器；单片机；LCD显示 esign of automatic motor speed detection system based on magnetoelectricity sensor Abstract：In engineering practice, we often encounter the situation of speed measurement, therefore, speed measurement has a certain engineering significance. This paper has developed motor speed detection system based on single chip microcomputer.The magnetoelectric sensor selected , the speed signal of motor into voltage signal.The designed amplifier circuit,will amplify the voltage signal of magnetoelectric sensor output, After shaping circuit，sine signal will be converted into square wave, pulse counting by single chip microcomputer,and through the LCD display of the motor speed. This paper first expounds the design of overall scheme, experiment steps, and discuss the appropriate measurement method. Secondly, this paper introduces the selection of single chip microcomputer and LCD displays and other electronic components, and analyzes the functions of the parts of the circuit diagram.In the end,write programs debugging and running, analyze the results of experimental. This design mainly used single-chip microcomputer as control core, and consists of magnetoelectric sensor, LCD display.Its advantage is simple circuit, software function is perfect, measuring speed, high precision, reliable control,high cost performance,etc. Key words：Speed measurement；Magnetic