Suppression of airflow turbulence in wavefront measurement for large-aperture optical systems

Shu-yan XU; Xu-sheng ZHANG; Kuo FAN; Guo-hao JU

doi:10.3788/OPE.20202801.0080

您当前的位置：

首页 >

文章列表页 >

Suppression of airflow turbulence in wavefront measurement for large-aperture optical systems

Modern Applied Optics | 更新时间：2020-08-13

- Suppression of airflow turbulence in wavefront measurement for large-aperture optical systems
- Optics and Precision Engineering Vol. 28, Issue 1, Pages: 80-89(2020)
- 作者机构：
  
  中国科学院长春光学精密机械与物理研究所，吉林长春 130033
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20202801.0080
  CLC： O439; V11; P111.21
- Received：06 June 2019，
  
  Accepted：06 August 2019，
  
  Published：15 January 2020
- 稿件说明：
移动端阅览
Shu-yan XU, Xu-sheng ZHANG, Kuo FAN, et al. Suppression of airflow turbulence in wavefront measurement for large-aperture optical systems[J]. Optics and precision engineering, 2020, 28(1): 80-89.
DOI：

Shu-yan XU, Xu-sheng ZHANG, Kuo FAN, et al. Suppression of airflow turbulence in wavefront measurement for large-aperture optical systems[J]. Optics and precision engineering, 2020, 28(1): 80-89. DOI： 10.3788/OPE.20202801.0080.

摘要

气流扰动将引起干涉检测光路中空气折射率动态变化，从而引入未知波前测量误差，它对于大口径、长焦距光学系统波前检测精度的影响尤为严重。为抑制该影响，本文提出一种基于计算流体动力学的主动温度场控制方法。首先，分析了气流扰动引入波前检测误差的原因，并基于流体力学理论阐明了通过主动送风手段提高室内温度场均匀性、抑制气流扰动影响的可行性。其次，结合口径为500 mm、焦距为6 000 mm的离轴三反望远镜检测光路构成以及所处环境条件，通过Fluent软件仿真建模提出一种利用风扇阵列主动送风的室内温度场控制方法。最后，对温度场控制前后实际光学检测数据进行对比，结果表明，控制前后7组像差系数测量值(一段时间内多次测量平均值)之间的标准差由0.034

减小到0.005

(

=632.8 nm)。本方法可有效抑制气流扰动对于光学检测精度的影响，对于提高非真空条件下大口径光学系统的波前检测精度具有一定的参考与借鉴意义。

Abstract

Airflow disturbance can cause a change in the air refractive index

which will introduce an unknown wavefront measurement error

especially for large-aperture

long-focus optical systems. To suppress this effect

this paper proposes an indoor temperature field control method based on Computational Fluid Dynamics (CFD). First

the cause of the wavefront detection error induced by air disturbance is analyzed

and the feasibility of improving the uniformity of indoor temperature field and restraining the influence of air disturbance using active air supply is expounded based on hydrodynamics theory. Secondly

an indoor temperature field control method using fan array for active air supply is proposed through simulation modeling

which considers the composition of the self-collimation optical path of an off-axis Three-Mirror Anastigmatic (TMA) telescope (diameter of 500 mm

focal length of 6 000 mm) and the environmental conditions. Finally

the actual optical measurement data before and after temperature field control are compared to verify the effectiveness of the proposed method. The results show that the standard deviation among the seven groups of aberration coefficient measurements (mean values of multiple measurements over a period of time) decreased from 0.034

to 0.005

(

=632.8 nm). The proposed method can effectively suppress the influence of airflow disturbance

which has certain reference significance for improving the optical detection accuracy of large-aperture long-focus optical systems under non-vacuum conditions.

关键词

Keywords

references

薛栋林, 郑立功, 张峰.基于光学自由曲面的离轴三反光学系统[J].光学精密工程, 2011, 19(12): 2813-2820.

XUE D L, ZHENG L G, ZHANG F. Off-axis three-mirror anastigmatic optical system based on optical freeform surfaces[J]. Opt. Precision Eng ., 2011, 19(12): 2813-2820. (in Chinese)

孙永雪, 夏振涛, 韩海波, 等.大口径红外离轴三反光学系统设计及公差分析[J].应用光学, 2018, 39(6): 803-808.

SUN Y X, XIA ZH T, HAN H B et al .. Large-aperture infrared off-axis three-mirror anastigmatic optical system design and tolerance analysis[J]. Journal of Applied Optics , 2018, 39(6): 803-808. (in Chinese)

巩盾, 田铁印, 王红.利用Zernike系数对离轴三反射系统进行计算机辅助装调[J].光学精密工程, 2010, 18(8): 1754-1759.

GONG D, TIAN T Y, WANG H. Computer-aided alignment of off-axis three-mirror anastigmatic optical system using Zernike aberration coefficients[J]. Opt. Precision Eng ., 2010, 18(8):1754-1759. (in Chinese)

GU Z Y, YAN C X, WANG Y. Alignment of a three-mirror anastigmatic telescope using nodal aberration theory[J]. Optics Express , 2015, 23(19): 25182-25201.

ZHANG X B, ZHANG D, XU S Y, et al .. Active optical alignment of off-axis telescopes based on nodal aberration theory[J]. Optics Express , 2016, 24(23): 26392-26413.

SHI J L, WANG Y, SHENG Y, et al .. The optical modeling tool and a simulation method for air turbulence in large opto-mechanical systems[J]. SPIE , 2009, 7506:75061N.

陈华.高精度面形检测中环境扰动因素分析[D].长春: 中国科学院长春光学精密机械与物理研究所, 2011. http://cdmd.cnki.com.cn/Article/CDMD-80139-1012291449.htm

CHEN H. Analysis of Environmental Disturbance Effects on High Precision Figure Measurement [D]. Changchun: Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 2011.(in Chinese)

姜自波, 李新南, 季波.空气垂直温度梯度对长焦镜面检测精度的影响分析[J].光学学报, 2015, 35(10): 142-147.

JIANG Z B, LI X N, JI B. Analysis of the influence of air vertical temperature gradient on the measurement accuracy of long focus mirror[J]. Acta Optica Sinica , 2015, 35(10): 142-147. (in Chinese)

张俊.蜂窝镜温度与镜面视宁度控制方法研究[D].成都: 中国科学院光电技术研究所, 2013.

ZHANG J. Study on the Control Method of the Temperature and Seeing of the Honeycomb Mirror [D]. Chengdu: Institute of Optoelectronic Technology, Chinese Academy of Sciences, 2013. (in Chinese).

杨飞, 安其昌, 张静, 等.大口径光学系统的镜面视宁度检测[J].光学精密工程, 2017(10):37-44.

YANG F, AN Q CH, ZHANG J, et al .. The seeing measurement of the optical system with large aperture[J]. Opt. Precision Eng ., 2017(10): 37-44. (in Chinese)

冯定华, 潘沙, 王文龙, 等.任意梯度折射率介质中光线追迹的仿真与分析[J].计算机仿真, 2010, 27(2): 135-139.

FENG D H, PAN SH, WANG W L, et al .. Simulation and analysis of ray tracing in arbitrary gradient index media[J]. Computer Simulation , 2010, 27(2): 135-139. (in Chinese)

金群锋.大气折射率影响因素的研究[D].杭州: 浙江大学, 2006.

JIN Q F. Study on the Factors Influencing the Refractive Index of Atmosphere [D]. Hangzhou: Zhejiang University, 2006. (in Chinese)

张德良.计算流体力学[M].北京:高等教育出版社, 2010.

ZHANG D L. Computational Fluid Dynamics [M]. Beijing: Higher Education Press, 2010. (in Chinese)

TRITIPPAYANON R, PIEMJAISWANG R, PIUMSOMBOON P, et al .. Computational fluid dynamics of sulfur dioxide and carbon dioxide capture using mixed feeding of calcium carbonate/calcium oxide in an industrial scale circulating fluidized bed boiler[J]. Applied Energy , 2019, 250: 493-502.

韩占忠, 王敬, 兰小平. FLUENT流体工程仿真计算实例与应用[M].北京:北京理工大学出版社, 2008.

HAN ZH ZH, WANG J, LAN X P. FLUENT Fluid Engineering Emulator Calculation Example and Application [M]. Beijing: Beijing University of Technology Press, 2008.

JU G H, YAN C X, GU Z Y, et al .. Aberration fields of off-axis two-mirror astronomical telescopes induced by lateral misalignments[J]. Optics Express , 2016, 24(21):24665-24703.

JU G H, MA H C, YAN C X. Aberration fields of off-axis astronomical telescopes induced by rotational misalignments[J]. Optics Express , 2018, 26(19):24816-24834.

JU G H, YAN C X, GU Z Y, et al .. Nonrotationally symmetric aberrations of off-axis two-mirror astronomical telescopes induced by axial misalignments[J]. Applied Optics , 2018, 57(6):1399-1409.

JU G H, MA H C, GU Z Y, et al .. Experimental study on the extension of nodal aberration theory to pupil-offset off-axis three-mirror anastigmatic telescopes[J]. Journal of Astronomical Telescopes, Instruments, and Systems , 2019, 5(2):029001.

REIMERS J, BAUER A, THOMPSON K P, et al .. Freeform spectrometer enabling increased compactness[J]. Light: Science & Applications , 2017, 6(7): e17026.

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Design of gene sequencing fluorescence microscopic system with dual-band LED illumination

Polarization-tunable shearing interferometry method for real-time reconstruction of large aberration wavefronts

Computer-aided alignment for large-aperture off-axis three mirrors optical system with artificially random air flow

Design of high integration and miniaturization concentric multiscale optical system

Solar simulator based on LED array light source

Related Author

WANG Jiangnan

WANG Siqi

LI Yunhui

WANG Kejun

LIU Meichen

MENG Qingyu

ZHANG Hongwen

LUO Yating

Related Institution

University of Chinese Academy of Sciences

Changchun Institute of Optics，Fine Mechanics and Physics，Chinese Academy of Sciences

College of Metrology Measurement and Instrument， China Jiliang University

School of Physics and Optoelectronic Engineering, Xidian University

College of Optoelectronic Engineering, Changchun University of Technology

AI问答

Address：No.3888 Dong Nanhu Road, Changchun, Jilin, China Postal code：130033
Tel：0431-86176855 Email：gxjmgc@ciomp.ac.cn
Technical support is provided by Beijing Founder electronics co., LTD 吉ICP备11002662号-17 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰