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《Machinery & Electronics》 2006-07
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Research of a PSD-based Electric Laser System

WU Xuebing,ZHU Guoli,ZOU Wanjun(Huazhong University of Science and Technology,Wuhan 430074,China)  
Based on the principle that parallel light will be focused on a single point after getting through the lens,this paper brings forward a technical project to measure angle of incidence by measuring the focus point's position of angle of incidence through position sensitive detector and signal processing circuit.This project analyzes the factors influencing measuring precision and gives resolving methods.Experiment proves that the measurement ranges and precision of horizontal angle can meet the need of TBM guidance precision.
【Fund】: 国家“八六三”计划资助项目(2003AA420130)
【CateGory Index】: U455.31
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