毕业设计（论文）-电机基于单片机的电机转速计设计.doc

摘 要 随着电子技术，特别是随大规模集成电路的产生而出现的微型计算机技术的飞速发展，人类生活发生了根本性的改变。如果说微型计算机的出现使现代科学研究得到了质的飞跃，那么可以毫不夸张地说，单片机技术的出现则是给现代工业测控领域带来了一次新的技术革命。目前，单片机以其体积小、重量轻、抗干扰能力强、对环境要求不高、高可靠性、高性能价格比、开发较为容易，在工业控制系统、数据采集系统、智能化仪器仪表、办公自动化等诸多领域得到极为广泛的应用，并已走人家庭，从洗衣机、微波炉到音响、汽车，到处都可见到单片机的踪影。因此，单片机技术开发和应用水平已逐步成为一个国家工业发展水平的标志之一。本课题介绍了一种利用单片机技术实现高精度数字式转速测量系统的方法。这种转速测量系统具有测量准确度高、采样速度快、测量范围宽和测量精度与被测转速无关等优点，具有广阔的应用前景。 关键词:转速测量; 单片机; 直射式红外光电传感器 Abstract With the development of electronic technology, especially with a large-scale integrated circuits the emergence of miniature of the rapid development of computer technology, human life has undergone a fundamental change. If the microcomputer that modern science research is a qualitative leap, it is no exaggeration to say, SCM technology is the emergence of modern industry control field to bring a new technological revolution. At present, single chip with its small size, light weight, strong anti-interference ability, is not high to the environment request, high reliability, high performance price ratio, develop relatively easy, in the industrial control system, data acquisition system, intelligent instrumentation, office automation and other fields have a wide range of applications, and have leave home, from the washing machine, microwave oven to audio, car, can see everywhere of SCM. Therefore, SCM technology development and application level has become a national symbol of the level of industrial development. This paper introduces a high precision measurement system of rotation rate method. The measurement system is of high accuracy, fast sampling speed, wide measuring range and precision of the measurement and the measured speed and other advantages, has broad application prospects. Keywords: measurement of rotation rate; single-chip microcomputer; Reflection type infrared photoelectric sensor 目 录 1 引言 1 1.1数字式转速测量系统的发展背景 1 1.2本设计课题的目的和意义 1 2 转速测量系统的原理 3 2.1转速测量方法 3 2.2转速测量原理 4 3 系统方案提出和论证 6 3.1 霍尔传感器测量方案 6 3.2 光电传感器 7 4 系统硬件设计 9