大量程激光位移传感器的成像系统设计  

Design of imaging system for wide-range laser displacement sensor

作　　者：沈本兰 徐先峰 姚磊[3] 栾守成 王红梅 SHEN Benlan;XU Xianfeng;YAO Lei;LUAN Shoucheng;WANG Hongmei(School of Rail Transportation,Shandong Jiaotong University,Jinan 250357,China;Xi'an Key Laboratory of Intelligent Expressway Information Fusion and Control,Xi'an 710064,China;Jinan Heavy Industries Group Co.,Ltd.,Jinan 250109,China;School of Electronics and Control Engineering,Chang'an University,Xi'an 710064,China)

机构地区：[1]山东交通学院轨道交通学院,山东济南250357 [2]西安市智慧高速公路信息融合与控制重点实验室,陕西西安710064 [3]济南重工集团有限公司,山东济南250109 [4]长安大学电子与控制工程学院,陕西西安710064

出　　处：《应用光学》2022年第3期386-391,共6页Journal of Applied Optics

基　　金：山东省重点研发计划项目(2019JZZY010428);长安大学中央高校基本科研业务费专项资金资助(300102321503,300102321501)。

摘　　要：为了解决目前国内自主研发的激光位移传感器基准工作距离短和测量范围小的问题,设计了一种适用于远距离测量的大量程激光位移传感器成像光学系统。基于激光三角测量原理,结合具体使用要求计算了大量程激光位移传感器的性能指标和成像光学系统的设计参数。选择5片式透镜结构作为系统的初始结构,利用光学设计软件对大量程激光位移传感器成像光学系统进行了仿真,完成了系统优化和性能分析,实现了基准工作距离为1000 mm、量程为±500 mm、分辨率为0.4 mm的大量程激光位移传感器成像系统设计。结果表明,在测量范围±500 mm内,系统均可以满足成像质量要求。该激光位移传感器成像系统具有工作距离远、测量量程大、结构简单的特点,可满足1000 mm远距离处大量程范围的测量使用要求。In order to solve the problems of short reference working distance and small measuring range of laser displacement sensors developed independently in China at present,an imaging optical system for a wide-range laser displacement sensor was designed,which was suitable for the long distance measurement.Based on the laser triangulation principle,combined with specific application requirements,the performance indicators of a wide-range laser displacement sensor and parameters of an imaging optical system were calculated.The five-piece lens structure was selected as the initial structure of the system,and the imaging optical system of wide-range laser displacement sensor was designed with optical design software.The optimal design and performance analysis of the system were completed,and the system with reference working distance of 1000 mm,measuring range of±500 mm and resolution of 0.4 mm was developed.The simulation results show that the system can achieve good imaging quality within the measuring range of±500 mm.The proposed laser displacement sensor imaging system has the advantages of long working distance,wide measuring range and simple structure,which can meet the requirements of wide-range measurement at 1000 mm.

关 键 词：激光位移传感器 激光三角测量 大量程 成像系统 光学设计 

分 类 号：TN249[电子电信—物理电子学]