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Influence of dynamic pressure on the optical window in laser interferometry |
LI Bo1,2 ,YANG Jun2,TANG Xiaqing1,HUANG Nan1,3 ,SHI Yusong2 |
1.Department of weaponry and control, Academy of Army Armored Forces, Beijing 100072, China;
2.Changcheng Institute of Metrology& Measurement, Beijing 100095, China;
3.China North Vehicle Research Institute, Beijing 100072, China |
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Abstract The optical window is often designed in the pressure chamber when a laser interferometer does the non-contact measurement of dynamic pressure in order to establish optical channels between dynamic pressure and laser interferometer.However, under dynamic pressure environment, optical windows are affected by the internal and external pressure difference, temperature variation, vibration and other factors, which will directly affect the accuracy of optical measurement.To solve the above problem, through simulation analysis, the relationship between the optical window and the pressure, temperature, vibration under dynamic pressure environment was analyzed.At the same time, the optical window was tested under dynamic pressure environment to study the influence of each influential component on the real measurement results, which can modify and compensate for the accuracy of calibration and measurement of dynamic pressure.It also provides a basis for the optical window design under other similar dynamic measurements.
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Received: 06 September 2018
Published: 28 April 2020
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[1]. Yang J , Fan S , Li C , et al. Liquid sinusoidal pressure measurement by laser interferometry based on the refractive index of water[J]. Applied Optics, 2016, 55(34):9695.
[2]. 李士贤, 李林. 光学设计手册.第2版[M]. 北京理工大学出版社, 1996.
[3]. Bayar M. Optomechanical systems design[M]. Marcel Dekker, Inc, 1986.
[4]. Li Ming. Optimization of Optical Window Glass Thickness Based on the Thermal Optical Analysis[J]. Acta Optica Sinica, 2010, 30(1):210-213.
[5]. Jr B W. Some effects of aerospace thermal environments on high-acuity optical systems.[J]. Applied Optics, 1966, 5(5):701.
[6]. Shi J, Wu. Thermal-Optical Analysis for Optical Window of High-Altitude and High-Speed Aerial Camera[J]. Acta Optica Sinica, 2012, 32(4):0422004.
[7]. Jr B W. Some effects of aerospace thermal environments on high-acuity optical systems[J]. Applied Optics, 1966, 5(5):701.
[8]. Lin K Q, Lu Y H, Luo Z F, et al. Numerical and experimental investigation of temperature effects on the surface plasmon resonance sensor[J]. Chinese Optics Letters, 2009, 7(5):428-431.
[9]. 傅志方, 华宏星. 模态分析理论与应用[M]. 上海交通大学出版社, 2000.
[10]. 曹树谦. 振动结构模态分析:理论、实验与应用[M]. 天津大学出版社, 2001.
[11]. 谢龙汉, 刘新让, 刘文超. ANSYS结构及动力学分析[M]. 电子工业出版社, 2012. |
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