| 一种基于光线漂移补偿的导轨角度误差测量方法 |
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| 引用本文： | 由凤玲,张斌,冯其波. 一种基于光线漂移补偿的导轨角度误差测量方法[J]. 北京交通大学学报(自然科学版), 2009, 33(6) |
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| 作者姓名： | 由凤玲 张斌 冯其波 |
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| 作者单位： | 北京交通大学,发光与光信息技术教育部重点实验室,北京,100044;北京交通大学,发光与光信息技术教育部重点实验室,北京,100044;北京交通大学,发光与光信息技术教育部重点实验室,北京,100044 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 提出了一种带有光线漂移补偿的测量导轨俯仰角误差、偏摆角误差的方法及系统.将平面反射镜作为角度测量敏感元件,利用二维位置敏感探测器(PSD)和透镜组合来实时监测激光器本身所引起的光线角度漂移.实验结果表明:使用本系统测量导轨的角度误差,由激光器本身所引起的光线角度漂移对导轨偏摆角及俯仰角误差的影响可分别减少89.3%和69.2%,进一步提高了导轨角度误差测量的精度.
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| 关 键 词： | 光线漂移 补偿 俯仰角误差 偏摆角误差 角度漂移 |
An Angular Measurement Method Based on Common-Path Compensation for Beam Drift |
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| YOU Fengling,ZHANG Bin,FENG Qibo. An Angular Measurement Method Based on Common-Path Compensation for Beam Drift[J]. JOURNAL OF BEIJING JIAOTONG UNIVERSITY, 2009, 33(6) |
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| Authors: | YOU Fengling ZHANG Bin FENG Qibo |
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| Affiliation: | YOU Fengling,ZHANG Bin,FENG Qibo(Key Laboratory of Luminescence , Optical Information,Ministry of Education,Beijing Jiaotong University,Beijing 100044,China) |
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| Abstract: | A method and system based on compensation for beam drift are put forward in order to measure pitch and yaw errors.The angular drift of laser can be compensated.With the mirror as angular detector,2-D position-sensitive detector and a lens are used to monitor angular drift of laser real-time.Experimental results show that the angular drift induced by laser can be lessened by about 89.3% and 69.2% respectively.The measuring precision of angular errors is improved further. |
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| Keywords: | beam drift compensation pitch error yaw error angular drift |
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