中国激光
中國激光
중국격광
CHINESE JOURNAL OF LASERS
2009年
11期
3026-3030
,共5页
杨本永%张黎明%杨宝云%乔延利
楊本永%張黎明%楊寶雲%喬延利
양본영%장려명%양보운%교연리
遥感%空间稳定性%环境试验%星上定标漫射板%反射率
遙感%空間穩定性%環境試驗%星上定標漫射闆%反射率
요감%공간은정성%배경시험%성상정표만사판%반사솔
remote sensing%space stability%environment simulation tests%diffuser panel used for on-board calibration%reflectivity
对光学传感器星上定标漫射板进行了研究,考查其在航天环境下的稳定性和适应性.漫射板经振动冲击、高低温循环、热真空和紫外辐照等系列环境模拟试验仍然保持良好的光学特性;紫外辐照前后其在350 nm处的反射率衰变不超过3%,分析认为这种紫外辐照下的反射率衰变是由于污染所致,通过改进工艺和环境控制是可以消除的;同时,漫射板通过了空间力学环境试验.研制的星上定标漫射板的空间稳定性能够满足航天应用要求.
對光學傳感器星上定標漫射闆進行瞭研究,攷查其在航天環境下的穩定性和適應性.漫射闆經振動遲擊、高低溫循環、熱真空和紫外輻照等繫列環境模擬試驗仍然保持良好的光學特性;紫外輻照前後其在350 nm處的反射率衰變不超過3%,分析認為這種紫外輻照下的反射率衰變是由于汙染所緻,通過改進工藝和環境控製是可以消除的;同時,漫射闆通過瞭空間力學環境試驗.研製的星上定標漫射闆的空間穩定性能夠滿足航天應用要求.
대광학전감기성상정표만사판진행료연구,고사기재항천배경하적은정성화괄응성.만사판경진동충격、고저온순배、열진공화자외복조등계렬배경모의시험잉연보지량호적광학특성;자외복조전후기재350 nm처적반사솔쇠변불초과3%,분석인위저충자외복조하적반사솔쇠변시유우오염소치,통과개진공예화배경공제시가이소제적;동시,만사판통과료공간역학배경시험.연제적성상정표만사판적공간은정성능구만족항천응용요구.
This paper studied the diffuser panel used for onboard calibration for satellite optical sensors. In order to investigate it's stability and the adaptability under spatial environment, a series of environment simulation tests such as vibration and shock, temperature cyclic, vacuum bakeout and UV/VUV were planed and implemented. The diffuser's optical properties were retentive after tests. The difference of reflectance at 350nm before and after UV/VUV test is within 3 %. Analysis shows that some degradation of optical properties under UV radiation has beenlinked to degradation of contaminants, which can be prevented by improvement of production protocol and environment control. At the same time, the diffuser panel goes though space level mechanical environment tests. So,the space stability of the diffuser panel used for onboard calibration can satisfy the spatial application demand.