基于单片机的微弱光电信号检测系统  

Weak Photoelectric Signals Detecting System Based on SCM

作　　者：谢三毛 康嘉斌 李鹏 谢锋云 XIE San-mao;KANG Jia-bin;LI Peng;XIE Feng-yun(School of Mechatronics and Vehicle Engineering,East China Jiaotong University,Nanchang 330013,China;School of Electrical and Automation Engineering,East China Jiaotong University,Nanchang 330013,China)

机构地区：[1]华东交通大学机电与车辆工程学院,江西南昌330013 [2]华东交通大学电气与自动化工程学院,江西南昌330013

出　　处：《仪表技术与传感器》2018年第3期57-59,共3页Instrument Technique and Sensor

基　　金：国家自然科学基金项目(51365012);江西省教育厅科技项目(GJJ160479)

摘　　要：采用单片机作为系统的主要控制芯片,由光电传感器采集微弱光信号,经放大电路放大,利用单片机内部的A/D进行模数转换,由LCD显示,实现了微弱光电信号的检测,且可利用串行通信接口与上位机进行数据通信。该系统具有检测快速、准确等优点,可应用于物品表面光泽度的检测。A single-chip microcomputer was used as the main control chip of the system.Weak light signal was acquired by photoelectric sensor.Then,the signal was amplified by circuit,converted by the internal A/D converter of microcontroller and displayed by LCD.Therefore,the weak photoelectric signal detection was realized.And,the system can communicate to computer by serial ports.The system had the advantages of the rapid detection and precision,and can be used to detect the brightness of goods surface.

关 键 词：微弱 光电信号 数据采集 信号处理 单片机 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]