Precise Positioning Using Laser Rangefinder in Radio Telescopes for Changing Feed Horn
The project aimed to improve an automatic system for changing feed horn.We developed a precisely positioning unit for the system in the place of manual feed which might cause seriously decreasing of accuracy because of aging equipments,thus to raise accuracy of feedback.The traditional length gauge sensor used for positioning can generally reach a precision of Imm,but with a serious drift of temperature,which affects precisely positioning of objects.Instead,a laser range finder can be achieved less than 0.1mm,and as a non-contact measuring instrument,it is easy to install,as well as high precision and low temperature drift.
laser range finder automatically changing PLC radio telescope
SUN Zengwu Aili Yusup WANG Shiqiang GUO Shaoguang LI Yongjiang YAN Li
Urumqi Astronomical Observatory National Astronomical Observatory Urumqi.Xinjiang,China The North West China Research Institute of Electronic Equipment Xian.Shanxi,China
国际会议
重庆
英文
14-17
2010-09-17（万方平台首次上网日期，不代表论文的发表时间）