高光譜儀的光機構分析與模擬;Opto-mechanical analysis and simulation of the HyperSCAN

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Title:	高光譜儀的光機構分析與模擬;Opto-mechanical analysis and simulation of the HyperSCAN
Authors:	謝承育;Hsieh, Cheng-Yu
Contributors:	太空科學與工程研究所
Keywords:	高光譜儀;Hyperspectral imaging
Date:	2021-07-20
Issue Date:	2021-12-07 11:17:54 (UTC+8)
Publisher:	國立中央大學
Abstract:	Hyper-SCAN為中央大學太空科技中心之計畫中交由本團隊設計製作之高光譜儀系統，預計搭載於 12U的立方衛星上。此高光譜儀之特色為利用較低的成本製作出體積小、重量輕的機構。儀器使用推掃式方法來獲取高光譜影像，視角大約在 5.8度，具連續光譜範圍為 460nm~650 nm以及高光譜分辨率 (~ 1nm)。本論文之目的在於對高光譜儀之工程體進行組裝以及校正實驗，包含焦平面校正、 FOV量測、波長校正等實驗室內實驗，以改善目前缺失以及建議未來的版本。另外高光譜儀系統的成敗關鍵最重要的是焦平面的成像位置，我們利用實際的組裝實驗以及光譜量測，來估計對焦平面距離的影響。並且使用 ANSYS進行機構模擬，包含熱分析、模態分析、暫態結構分析、隨機振動分析等，用來評估高光譜飛行體的效能影響。;Hyper-SCAN (Spectral Camera A Nalyzer) is a hyperspectral imager, one of the scientific payloads onboard the 12U CubeSat, designed and ensemble by the Space Optics Laboratory Center for Astronautical Physics & Engineering, National Central University. The key features of this hyperspectral imager have a compact size, lightweight, and low cost. The Hyper-SCAN adopts a push-broom method to acquire hyperspectral images with a FOV (5.8 degrees), a continuous visual band (460-650 nm), and a high-resolution bandwidth (~1nm). In this thesis, we calibrated the hyperspectral imager system and study the caused errors in the distance of the focal plane due to the integration process and its space environment. We utilize the assembling experiment and spectral measurement results to evaluate the impacts on the focal plane. Using ANSYS, we also simulate the changing effects of optical mechanism on the Hyper-SCAN through thermal analysis, modal analysis, transient structural analysis and random vibration analysis. These analysis results will be used to improve and guarantee the performance of the Hyper-SCAN flight model.
Appears in Collections:	[Graduate Institute of Space Science] Department of Earth Sciences

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