高精度紫外标准探测器的定标

研究了紫外标准探测器定标方法,以便进一步提高紫外波段辐射定标的精度。构建了高精度紫外标准辐射计,并推导了紫外辐射计响应度标准。在定标过程中直接利用高精度标准辐射计进行标准传递,并根据替代法定标原理消除了多项影响因子,使得定标精度大幅提高。最后,利用标准光源及标准探测器定标方法对待测光源辐照度、空间遥感仪器辐照度响应度进行了标定。两种方法定标结果表明:采用标准探测器定标方法可使定标不确定度降低到1.6%,充分证明了紫外标准探测器定标方法的有效性及高精度,实现了紫外探测器定标方法的工程化应用。

Calibration of high accuracy UV standard detector

A UV standard detector calibration method was researched to improve the calibration accuracy. A High Accurate UV Radiometer (HAUVR) was established, and the standard response of the UV radiometer was deduced. In calibration, the HAUVR was used to transfer standard and the substitution method was adopted to eliminate some uncertainty factors. Finally, two kinds of calibration methods, namely, standard light source and standard detector calibration methods, were taken to calibrate the irradiance of an untested light and the irradiance response of an ozone vertical detector. Calibration results show that the uncertainty of calibration has been decreased to 1.6% by standard detector calibration method, which proves the efficiency and high accuracy of the UV standard detector calibration method. It realizes the engineering applications of the UV detector calibration method.