基于单片机的电机转速测量仪表设计-本科毕设论文.docVIP

学号： 常 州 大 学 毕业设计（论文） （2012届） 题 目 学 生 学 院 专业班级 校内指导教师 专业技术职务 校外指导老师 专业技术职务 二○ 基于单片机的电机转速测量仪表设计 ：转速，例如在发动机、电动机、机床主轴等旋转设备的试验运转和控制中，常需要分时或连续测量、显示其转速及瞬时速度。为了能精确地测量转速，还要保证测量的实时性，要求能测得瞬时转速。 本文介绍了单片机、电机测速系统及其原理，设计了系统的硬件电路和软件。本设计以STC89C52RC单片机，利用霍尔传感器采集脉冲信号，通过定时计数算法程序，将转速实时显示出来。电机转速测量仪表设计的研究成果，可以应用于工业控制中的某一部分，如数控车床的电机转速检测和控制、水泵流量控制以及需要利用转速检测来进行控制的许多场合。如车辆的里程表、车速表等。 关键词：单片机；霍尔传感器；电机测速系统； A Measuring Instrument Design upon Rotational Speed of Motors Based on SCM Abstract：Speed measurement is used in practice. For example, time-sharing or continuously measuring and displaying the speed and instantaneous velocity is often required in the operation and controling of engines, motors, machines and other rotating equipment.. In order to accurately measure rotating speed and ensure the real-time feature of measurement, it is also important to do real-time measurement. We can see that speed measurement is of great significance in yielding and living. This article describes features of SCM, motor speed measurement system and its principles. Designs the system hardware and software. This design is based on STC89C52RC microcontroller, composed by the Hall sensor, the 1602 display, DC motor. Hall sensor acquires pulse signals, by calling the timing and counting programs and algorithm program, the rotating speed can be calculated. And the results are real-timely display. At the same time, the measurement results can be stored in memory and data communication is done with the host computer. By runing the tests, we can see that the system is simple, stable and reliable to meet the motor rotating speed measuring requirements. The research of motor speed m