收稿日期: 2009-09-30
修回日期: 2010-03-12
网络出版日期: 2010-07-15
基金资助
国家自然科学基金项目(10703008)资助
Simulation study on measuring piston error of segmented mirror using dispersed fringe sensoring technology
Received date: 2009-09-30
Revised date: 2010-03-12
Online published: 2010-07-15
张勇 , 张靓 . 色散条纹传感技术用于拼接镜面位移探测的仿真研究[J]. 中国科学院大学学报, 2010 , 27(4) : 471 -479 . DOI: 10.7523/j.issn.2095-6134.2010.4.006
When constructing the segmented primary mirror of a maximum aperture telescope, the piston error of segmented mirrors needs testing accurately. In this paper, a dispersed fringe sensor (DFS) was simulated from physical optics, according to the principle of dispersed fringe sensoring technology. DFS interferograms were produced and signals were sampled from them to obtain the result of detection through fitting curve of light distribution. We compared sampling signals in different wavebands and put forward two methods of sampling effective signals by opening window on a CCD camera to improve measuring precision. The measurement range is as large as ±50μm, and the measurement accuracy is about several tens of nanometers.
Key words： active optics; segmented mirrors; dispersed fringe sensor; piston error
[1] Su D Q, Zou W Y, Zhang Z C, et al. Experiment system of segmented-mirror active optics
[J]. Proceedings of SPIE, 2000, 4003: 417-425.
[2] Su D Q, Cui X Q, Wang Y N, et al. Large-sky-area multiobject fiber spectroscopic telescope (LAMOST) and its key technology
[J].Proceedings of SPIE, 1998, 3352: 76-90.
[3] Chanan G, Troy M, Ohara C. Phasing the primary mirror segments of the keck telescopes: A comparison of different techniques
[J]. Proceeding of SPIE, 2002, 4003: 188-202.
[4] Chanan G, Tory M, Sirko E. Phsing the Keck telescopes with out-of-focus images in the infrared
[J]. Proceedings of SPIE, 1998, 3352: 632-642.
[5] Paxman R G, Fienup J R. Optical misalignment sensing and image reconstruction using phase diversity
[J]. J Opt Soc Am A, 1988, 5: 914-922.
[6] Zhu N H, Chen X Y, Zhou D, et al. Study on measuring piston error of segmented mirror using pyramid sensor
[J]. Chinese Journal of Sensors and Actuators, 2009, 22(3): 433-437(in chinese). 朱能鸿,陈欣扬,周 丹,等.利用四棱锥传感器检测光学拼接镜的法向光程差
[J].传感技术学报.2009,22(3): 433-437.
[7] Shi F, Chanan G, Ohara C, et al. Experimental verification of dispersed fringe sensing as a segment phasing technique using the keck telescope
[J]. Applied Optics, 2004, 43(23): 4474-4481.
[8] Shi F, Redding D, Green J J, et al. Performance of segmented mirror coarse phasing with a dispersed fringe sensor: modeling and simulations
[J]. Proceedings of SPIE, 2004, 5487: 897-908.
[9] Zhang Y, Liu G R, Wang Y F, et al .Preliminary study of a dispersed fringe type sensing system
[J]. Research in Astronomy and Astrophysics. 2009, 9(8): 945-952.
[10] Shi F, Redding D, Bowers C, et al. DCATT dispersed fringe sensor: modeling and experimenting with the transmissive phase plates
[J]. Proceedings of SPIE, 2000, 4013: 757-762.
[11] 刘钦圣.最小二乘问题计算方法
[M].北京:北京工业大学出版社,1989:72-80.
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