【作者】 李颖文； 陈福胜； 杨长城； 罗艳；

【Author】 LI Ying-wen CHEN Fu-sheng YANG Chang-cheng LUO Yan (Huazhong Research Institute of Electro-Optics,430073 Wuhan,China)

【机构】 华中光电技术研究所；

【摘要】 简述了目前红外测试标准传递的体系,红外标准从国家级红外辐射计、凝固点黑体、传输标准点温仪或者可变温度黑体或者标准探测器到用户黑体依次进行传递。目前对红外参数标准的传递和测试设备的校准,集中在黑体的校准、探测器响应曲线的校准、光学系统反射率、平行光管的透过率的校准上。通过对这些关键部件性能参数的校准,可以保证红外测试的精度。分析了影响 NETD 测试不确定度的几个因素,高精度的黑体是测试高灵敏度红外探测器和红外热像仪的必备条件之一。华中光电技术研究所建立了用户红外标准传递体系,其红外标准可以回溯到美国国家标准与技术监督局。其红外测试精度与国外公司的测试结果的偏差在10%以内。给出了我国建立红外测试标准的建议。更多还原

【Abstract】 The nowadays infrared test standard transfer system is introduced,and the infrared standard is transferred from national infrared cryogenic radiometer to fixed-point blackbody,transfer standard pyrometer or viable temperature blackbody or standard detector,and to user blackbody.Now the transfer of infrared parameters and calibration of test system focus on the calibrations of blackbody,the responsivity curve of detector,reflectivity of optical system,transmittance of collimator.The infrared test accuracy can be proven by the calibrations of the performance of the key components.Some of the factors that affect the uncertainty of NETD is analyzed and the high accuracy blackbody is necessary for test of high sensible infrared detector and camera.Huazhong Research Institute of Electro-Optics has set up the customer infrared standard transfer system which can be traceable to National Institute of Standard and Technology.The infrared test uncertainty of detectors and camera is with 10% compared with the test in advanced countries.Finally the suggestions to set up the infrared test standard system are proposed.更多还原