本文關(guān)鍵詞： 測量 改正鏡 熱光學(xué)分析 真空相機(jī) 熱力耦合　出處：《激光與光電子學(xué)進(jìn)展》2017年12期 　論文類型：期刊論文

【摘要】：以熱光學(xué)分析為基礎(chǔ),對復(fù)雜環(huán)境下改正鏡作為光學(xué)窗口的玻璃厚度進(jìn)行了優(yōu)化設(shè)計。對改正鏡的強(qiáng)度及其所處的熱環(huán)境進(jìn)行了分析,將溫度場映射到結(jié)構(gòu)模型中,利用有限元計算改正鏡在熱-力耦合情況下的改正鏡的變形量和面形數(shù)據(jù),對正鏡面形數(shù)據(jù)進(jìn)行擬合和處理,最后將處理后的改正鏡面形數(shù)據(jù)導(dǎo)入光學(xué)設(shè)計方案中,分析改正鏡厚度對光譜儀性能影響。結(jié)果表明改正鏡厚度應(yīng)該不小于10mm;當(dāng)改正鏡厚度為15mm時,改正鏡受熱力學(xué)影響可以忽略。因此改正鏡作為光學(xué)窗口既能滿足強(qiáng)度和可靠性要求,又能滿足光譜儀性能指標(biāo),為窗口的設(shè)計提供了依據(jù)。
[Abstract]:Based on thermal optical analysis, the glass thickness of correction mirror as optical window in complex environment is optimized. The strength of correction mirror and its thermal environment are analyzed, and the temperature field is mapped to the structure model. Using finite element method to calculate the deformation and plane shape data of correction mirror under thermal-mechanical coupling, the normal mirror shape data is fitted and processed. Finally, the corrected mirror shape data after processing is introduced into the optical design scheme. The effect of correction mirror thickness on the performance of spectrometer is analyzed. The results show that the thickness of correction mirror should not be less than 10 mm, and when the thickness of correction mirror is 15 mm, The effect of thermodynamics on the correction mirror can be neglected. Therefore, as an optical window, the corrector can not only meet the requirements of strength and reliability, but also meet the performance index of spectrometer, which provides the basis for the design of the window.
【作者單位】： 中國科學(xué)院國家天文臺南京天文光學(xué)技術(shù)研究所;中國科學(xué)院天文光學(xué)技術(shù)重點實驗室;
【基金】：國家自然科學(xué)基金(11273038,11603054,11503059,11473049)
【分類號】：TB852.1
，

本文編號：1522134