Radiation calibration method for infrared system with large aperture and broad dynamic range

	Radiation calibration method for infrared system with large aperture and broad dynamic range
	Sun Z.; Chang S.; Zhu W.
	2014
发表期刊	Guangxue Xuebao/Acta Optica Sinica
ISSN	ISBN/02532239
卷号	34 期号:7
摘要	The existing radiation calibration for infrared system with large aperture and broad dynamic range needs huge infrared collimator, but this method has poor motility and cost much. In order to settle this question, a new calibration method basing on the amendment of inner and outer calibration is put forward. This method set a middle-high temperature cavity blackbody in infrared system, with the help of switching reflector, the cavity blackbody radiation is imported into optics system for the inner calibration on parts of system at middle-high temperature range, and an extended source blackbody is needed for the outer calibration on the whole system at middle-low temperature range. The inner and outer calibration data at common temperature range are picked up to calculate the amendatory coefficient. In the end, the whole system's radiation calibration data at the middle-high temperature range are caught by amending the inner calibration data. Combining the outer calibration data at the middle-low temperature range, the whole system's radiation calibration data at broad dynamic range are gained. Carrying through this method on an 400 mm infrared system and calculating the luminance error and temperature error, the maximal luminance error is 1.35% and the maximal temperature error is 0.76C, the results indicate that the proposed method is effective.
收录类别	EI
语种	中文
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/44304
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Sun Z.,Chang S.,Zhu W.. Radiation calibration method for infrared system with large aperture and broad dynamic range[J]. Guangxue Xuebao/Acta Optica Sinica,2014,34(7).
APA	Sun Z.,Chang S.,&Zhu W..(2014).Radiation calibration method for infrared system with large aperture and broad dynamic range.Guangxue Xuebao/Acta Optica Sinica,34(7).
MLA	Sun Z.,et al."Radiation calibration method for infrared system with large aperture and broad dynamic range".Guangxue Xuebao/Acta Optica Sinica 34.7(2014).

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