Optical window environment adaptation analysis of optical wavefront measurement system

Kailin Zhang; Xiping Xu; Yue Pan; Yu Zhang

doi:10.1117/12.2606985

24 November 2021 Optical window environment adaptation analysis of optical wavefront measurement system

Kailin Zhang, Xiping Xu, Yue Pan, Yu Zhang

Proceedings Volume 12065, AOPC 2021: Optical Sensing and Imaging Technology; 120653G (2021) https://doi.org/10.1117/12.2606985
Event: Applied Optics and Photonics China 2021, 2021, Beijing, China

Abstract

The optical wave wavefront measurement system can perform non-contact real-time quantitative monitoring of the gas flow rate according to the gas density changes in the wind tunnel test. Since the quality of the optical surface of the wind tunnel window directly affects the acquisition accuracy of wavefront information, it is necessary to evaluate the adaptability of the opto-mechanical structure to fluid load in the development stage. To solve this problem, this paper proposes a gas flow field change model based on Finite Element Analysis (FEA). By calculating the fluid-structure coupling response of the wind tunnel window, the displacement field of the wind tunnel window and the maximum displacement of the node are obtained. It is 0.00018mm, and the result shows that the window glass has good environmental adaptability at a flow rate of 885m/s.

Citation Download Citation

Kailin Zhang, Xiping Xu, Yue Pan, and Yu Zhang "Optical window environment adaptation analysis of optical wavefront measurement system", Proc. SPIE 12065, AOPC 2021: Optical Sensing and Imaging Technology, 120653G (24 November 2021); https://doi.org/10.1117/12.2606985

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