高精度脉冲式激光测距系统的设计  

Design of High Precision Pulsed Laser Ranging System

作　　者：田海军[1] 杨婷[1] 赵杨辉 

机构地区：[1]东北电力大学自动化工程学院,吉林吉林132000

出　　处：《机床与液压》2017年第3期118-122,共5页Machine Tool & Hydraulics

基　　金：国家自然科学基金资助项目(61304015)

摘　　要：设计了一种脉冲式激光测距系统。采用SPLLL90半导体激光二极管,AD500-9型光电探测器实现光电转换。为提高脉冲激光飞行的时间测量精度,采用时间数字转换芯片TDC-GP22,单片机通过SPI接口技术读取测量结果,经单片机处理后的数据传给LCD12864显示器。测试结果表明:该测量方法精度达到65 ps,可以满足工业领域的要求。A pulsed laser ranging system was designed with SPLLL90 semiconductor laser diode and photoelectric conversion of AD500-9 photoelectric detector. In order to enhance time measurement accuracy, a time digital converter chip TDC-GP22 was used. Microcontroller read the measurement results with SPI interface technology. Then the records were not transmitted to the LCD12864 in- dicator until they were processed by STM32. The test results indicate that the precision can reach 65 ps and it can meet the require- ments of industrial domain.

关 键 词：脉冲激光测距 时间测量 TDC-GP22 

分 类 号：TP212.9[自动化与计算机技术—检测技术与自动化装置]