摘要
研制了一套全新的自动安平机构,以解决传统激光扫平仪无法同时兼顾安平精度、范围和速度的问题。首先,改进了传统自动安平仪器中的倾角传感器,设计了一种带有补偿环节的电子水泡以满足仪器的精度要求;其次,基于PID控制方法设计了用于实现仪器自动安平的闭环控制系统,同时引入模糊控制思想,使其达到了仪器自动安平的速度要求;最后,优化了仪器机械结构,有效增大了仪器的安平范围。实验测试结果表明,该扫平仪在-10°～+10°的安平精度达到10″,且自动安平时间小于10s。传统的激光扫平仪相比,设计的安平仪具有安平精度高、扫描范围大和安平速度快等特点。
As traditional rotating laser construction can not give all considerations to the speed,range and the precision of leveling,this paper developed a new self-leveling mechanism to solve the problem above mentioned.Firstly,by improving the angle sensor in a traditional rotating laser construction,a kind of electronic bubble with the compensative function was designed to meet the accuracy requirement.Then,based on the PID controlling method,a closed loop control system for the self-leveling was designed,while the fuzzy control method was induced to the index of leveling speed.Finally,the general layout of the system was optimized,and the range of self-leveling was enlarged.The experimental result indicates that the leveling accuracy is 10″ and the leveling time is less than 10 s while the inclining angle is from-10° to ＋10°.In conclusion,the new construction has the characteristics of higher leveling precision,larger leveling ranges and faster leveling speeds as compared with the traditional one.
出处
《光学精密工程》
EI
CAS
CSCD
北大核心
2012年第8期1870-1876,共7页
Optics and Precision Engineering
基金
国家973重点基础研究发展计划资助项目(No.2011CB707904)
关键词
激光扫平仪
电子水泡
自动安平
模糊控制
rotating laser construction
electronic bubble
self-leveling
fuzzy controlling
