AT89C52单片机的步进光学测试平台控制技术
关键词 步进电机 单片机 光学平台 AT89C52
毕业设计说明书（论文）外文摘要
Title The stepper optical test platform control technology Based on Micro control unit (MCU)
Abstract
In many optical systems or equipment, the characteristic parameters of the
distribution of light field in the two-dimensional plane need to be measured, such as
the optical properties of military targets in the defense , the plane of the scattered light
field distribution need to be measured. Traditional instruments to manually point by
point measurements, do not have a very high position resolution. A precise automatic
control of the stepper optical test platform is designed in this project, to solve this
problem.
A stepper optical test platform based on MCU is introduced in this paper. First
photoelectric detection system is designed to detect weak signals, this signal after
filtering, amplication to A/D conversion. The control system of stepper motor based
on 51 series AT89C52 microcontroller, the stepper motor forward ,reverse, stop
program is written in C languague and to achieve the above functions by MCU, motor
driver chip ULN2003 and the corresponding buttons. To be detected points in the
two-dimensional plane are scanned and procise positioned by this control system,
and the location and the measurement results of the test points are displayed by LCD
1602. This design has passed the Proteus software experiment simulation, debugging,
stable operation, to achieve the required functions.
Keywords Stepping motor MCU Optical platform AT89C52
本科毕业设计说明书（论文） 第 I 页 共 IV 页
目 次
1 绪论1
1.1 引言.1
1.2 课题研究背景及意义.1
1.3 国内外的研究发展及动态.2
1.4 论文内容安排.3
2 整体系统构成4
3 光电检测系统设计5
3.1 设计方案.5
3.2 光电二极管简介.5
3.3 光电转换电路及前置放大电路.6
3.4 滤波与主放大电路.7
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