弯管机电机转速测控系统的研制

论文编号:CK089论文字数:10961,页数:25

摘要

随着社会信息化的发展，在现今的工控行业中，转速的测量控制显得越来越重要。尤其是对于弯管机的电机转速控制要求更是严格，转速过快或过慢都会影响到型材的质量，使管材表面拉裂或起皱，所以只有转速的高精度检测才能得到高精度的控制系统。传统的转速测量方法较多，但都普遍存在测量精度较低、测试过程复杂等缺点。基于这点，本文介绍了旋转编码器的分类和测速原理，并且以旋转编码器结合单片机设计了一种具有转速测量及控制功能的系统。结果表明，该测量仪运行稳定可靠，测量精度较高，完全满足系统要求，其简洁的电路设计和典型的控制方法具有一定的参考价值。

关键词：转速;旋转编码器;单片机

Abstract

With the developing of information society, in today’s industrial sector, rotary speed of measurement and control become increasingly important. Bending machine especially for the motor speed control is strict, too fast or too slow speed will affect the quality of profiles, so that pipe rupture or wrinkling the surface, so only the high-precision detection speed can be high-precision control system.There are many traditional methods of speed measurement, they are the lower measurement accuracy and prevalent, such as the shortcomings of the complexity of the testing process. For this reason, this article describes the classification of rotary encoder,velocimetry principle and rotary encoder to design a single-chip combination of a speed measurement and control systems.The results show that the measurement is stable, reliable operation，it has high measurement precision, fill the requirements of the system fully. Its simple circuit design and typical circuit control method has a certain reference value.

Keywords：Rotary speed; Rotary encoder; Single-chip

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目录

摘要Ⅰ

AbstractⅡ

1 绪论1

1.1 课题的来源1

1.2 研究的目的和意义1

1.3 国内外研究现状2

1.4 本论文研究的主要内容5

2 弯管机电机转速测控系统的研制6

2.1 总设计方案6

2.1.1测量系统的构成6

2.1.2系统各部分功能7

2.2 硬件系统的设计8

2.2.1光电编码器分类及原理8

2.2.2信号倍频与辨向原理及其实现电路的设计10

2.2.3单片机外接电路12

2.3 单片机计数软件设计14

2.3.1 80C51微处理器的基本配置及其引脚说明14

2.3.2使用单片机I/O口读数及中断口计数15

2.4 误差分析18

2.4.1增量式脉冲编码器所带来的误差18

2.4.2晶体振荡器的频率误差[13]18

2.4.3测量脉冲数带来的误差18

3 总结19

致谢20

附录1 系统电路总图