Changchun Institute of Optics,Fine Mechanics and Physics,CAS
Study on main factors affecting position detection accuracy of four-quadrant detector | |
Zhang, H.; Y. Chen; T. Geng; J. Wu and T. Chen | |
2015 | |
发表期刊 | Zhongguo Jiguang/Chinese Journal of Lasers
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卷号 | 42期号:12 |
摘要 | In order to improve the spot position detection performance of four-quadrant detector (QD), the main factors affecting QD position detection accuracy in the Gaussian spot model are studied. The basic principle of QD position detection is analyzed. Then on the basis of error theory, the mathematical model of the relationship between position detection accuracy and spot radius, centroid position, signal to noise ratio (SNR) is obtained when a laser spot of Gaussian energy profile illuminates QD. The validity of mathematical model is verified by numerical simulations and experimental analysis. The trends and degree of the factors impact on the position detection accuracy are further discussed. The results show that adoption of smaller spot radius, closer to the center of photosensitive area, and higher SNR, can effectively improve the accuracy of spot detection when the detection range of QD system is fixed. When system's SNR is 57.48 dB and spot radius is 0.6 mm, the center position detection accuracy of QD can be up to 0.514 m. 2015, Science Press. All right reserved. |
文章类型 | 期刊论文 |
收录类别 | EI |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ciomp.ac.cn/handle/181722/56392 |
专题 | 中科院长春光机所知识产出 |
推荐引用方式 GB/T 7714 | Zhang, H.,Y. Chen,T. Geng,et al. Study on main factors affecting position detection accuracy of four-quadrant detector[J]. Zhongguo Jiguang/Chinese Journal of Lasers,2015,42(12). |
APA | Zhang, H.,Y. Chen,T. Geng,&J. Wu and T. Chen.(2015).Study on main factors affecting position detection accuracy of four-quadrant detector.Zhongguo Jiguang/Chinese Journal of Lasers,42(12). |
MLA | Zhang, H.,et al."Study on main factors affecting position detection accuracy of four-quadrant detector".Zhongguo Jiguang/Chinese Journal of Lasers 42.12(2015). |
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四象限探测器位置检测精度的主要影响因素研(3841KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 下载 |
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