Li Yanwei, Yang Hongbo, Cheng Zhifeng, Ding Yalin, Zhang Hongwen, Zhang Jingguo. Thermal/structural/optical integrated design for optical window in aerial remote sensor[J]. Infrared and Laser Engineering, 2012, 41(8): 2102-2106.
Citation: Li Yanwei, Yang Hongbo, Cheng Zhifeng, Ding Yalin, Zhang Hongwen, Zhang Jingguo. Thermal/structural/optical integrated design for optical window in aerial remote sensor[J]. Infrared and Laser Engineering, 2012, 41(8): 2102-2106.
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Thermal/structural/optical integrated design for optical window in aerial remote sensor

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    • Abstract
  • Inordertoreducetheinfluenceofopticalwindowonimagingqualityinaerialremotesensor,theopticalwindowwasoptimizedinglassthickness.Theminimumthicknessofopticalwindowglasswascalculatedwithstrengththeory.Theconvectionheattransfercoefficientonoutersurfaceofopticalwindowglasswascalculatedwiththetheoryoflongitudinallysweepingplanmural.Basedonthethermalopticalanalysis,transientstatetemperaturefieldwasemulated,andtheopticalpathinpeaktovalleyvalue(PV)androotmeansquare(RMS)errorwerecalculatedunderthethermal-forcecouplingcondition. Thicknessoftheopticalwindow(290mm140mm)wasdeterminedas17mm.TheresultofpracticalapplicationshowsthattheMTFis0.304whenthecharacteristicsfrequencyis60lp/mmandthestableanddistinctimageisobtained.Thestudyresultshowsthatthermal/structural/opticalintegrateddesignforopticalwindowisachievedsuccessfully,anditprovidesareferencefortheopticalwindowdesign.
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