中国光学（中英文）2024，Vol.17Issue(6)：1489-1511,23.DOI:10.37188/CO.2023-0234
多普勒外差干涉仪的光机热集成分析
Opto-mechanical-thermal integration analysis of Doppler asymmetric spatial heterodyne interferometer
摘要
Abstract
In order to improve the detection accuracy of Doppler asymmetric spatial heterodyne(DASH)in-terferometer in harsh temperatures,an opto-mechanical-thermal integration analysis is carried out.Firstly,the correlation between the interference phase and temperature is established according to the working principle and the phase algorithm of the interferometer.Secondly,the optical mechanical thermal analysis model and thermal deformation data acquisition model are designed.The deformation data of the interference module and the imaging optical system at different temperatures are given by temperature load simulation analysis,and the phase error caused by thermal deformation is obtained by fitting.Finally,based on the wind speed er-ror caused by thermal deformation of each component,a reasonable temperature control scheme is proposed.The results show that the interference module occupies the main cause,the temperature must be controlled within(20±0.05)℃,and the temperature control should be carried out for the temperature sensitive parts,and the wind speed error caused by the part is 3.8 m/s.The thermal drift between the magnification of the imaging optical system and the thermal drift of the relative position between the imaging optical system and the detector should occupy the secondary cause,which should be controlled within(20±2)℃,and the wind speed error caused by the part is 3.05 m/s.In summary,the wind measurement error caused by interference module,imaging optical system,and the relative position between the imaging optical system and the detect-or can be controlled within 6.85 m/s.The analysis and temperature control schemes presented in this paper can provide theoretical basis for DASH interferometer engineering applications.关键词
多普勒非对称空间外差干涉仪/干涉模块/成像光学系统/光机热集成分析/相位误差/温度控制Key words
Doppler asymmetric spatial heterodyne interferometer/interference module/imaging optical system/opto-mechanical thermal integration analysis/phase error/temperature control分类
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王锦疆,江伦,佟首峰,裴惠熠,崔勇,郭名航..多普勒外差干涉仪的光机热集成分析[J].中国光学（中英文）,2024,17(6):1489-1511,23.基金项目
国家重点研发计划项目(No.2022YFB3902500) （No.2022YFB3902500）
吉林省重点研发计划项目(No.20230201006GX)Supported by National Key Research and Development Program of China(No.2022YFB3902500) （No.20230201006GX）
Key Re-search and Development Program of Jilin Province(No.20230201006GX) （No.20230201006GX）
