基于温度补偿算法的双光路激光测距的研究  

Research on Laser Ranging with Two Optical Paths Based on Temperature Compensation Algorithm

作　　者：王山 廖平[1] WANG Shan;LIAO Ping(College of Mechanical and Electrical Engineering,Central South University,Changsha 410083,China)

机构地区：[1]中南大学机电工程学院,湖南长沙410083

出　　处：《仪表技术与传感器》2022年第4期84-88,共5页Instrument Technique and Sensor

摘　　要：针对当前激光测距系统中测量速度慢,精度易受温度影响等问题,提出了一种基于温度补偿算法的双光路激光测距系统的设计方案,并进行理论分析与实验验证。该方案以STM32F030C8T6为处理核心,包含了频率发生模块、高压模块、激光发射模块、激光接收模块、电源模块等主要模块,实现了激光测距的硬件设计,在接收模块上放置一个热敏电阻,采集这个电阻上的电压,然后转换成温度,再通过算法对距离值进行补偿。实验测试表明本测距系统在提高测量速度的同时不会损失测量精度,可应用于实时性要求高的测距场合。Aiming at the problems of slow measurement speed and easy to be affected by temperature in the current laser ranging system,a design scheme of double optical laser ranging system based on temperature compensation algorithm was proposed,and the theoretical analysis and experimental verification were carried out.The scheme took STM32F030C8T6 as the core,including frequency generating module,high voltage module,laser emission module,laser receiving module,power module and other main modules.The hardware design of laser ranging was realized.A thermistor was placed on the receiving module,the voltage on the resistance was collected,and then converted into temperature,and the distance value was compensated by algorithm.The experimental results show that the measuring system can improve the measuring speed without losing the measuring accuracy,which is of great significance to the measuring occasions with high real-time requirement.

关 键 词：温度补偿 STM32 实时性 双光路 

分 类 号：TH711[机械工程—测试计量技术及仪器]