摘要
红外探测器是红外系统的核心器件。近年来,高灵敏度、低噪声成为红外探测器技术的研究热点之一。对于噪声等效温差(Noise Equivalent Temperature Difference,NETD)值小于1 mK的低噪声红外探测器,环境因素对其性能的影响不可忽视。从黑体控温精度、测试环境温度、测试环境中的气流扰动等方面,分析了测试环境对亚毫开红外探测器测试结果的影响,并对低噪声红外探测器的测试方法进行了探究。实验结果表明,黑体控温精度对高灵敏度红外探测器的NETD值有直接影响,测试环境温度与气流扰动会影响黑体控温稳定性,从而间接影响NETD测量的准确度。
Infrared detectors are the core components of infrared systems.In recent years,high sensitivity and low noise have become one of the research hotspots in infrared detector technology.For low-noise detectors with noise equivalent temperature difference(NETD)value less than 1 mK,the impact of environmental factors on their performance can not be ignored.The influence of test environment on the test results of sub-mK infrared detectors was analyzed from the aspects of blackbody temperature control accuracy,test environment temperature and airflow disturbance in the test environment.The test methods of low-noise infrared detectors were explored.The experimental results show that the accuracy of blackbody temperature control has a direct impact on the NETD value of high-sensitivity infrared detectors.The test environment temperature and airflow disturbance can affect the stability of blackbody temperature control,thereby indirectly affecting the accuracy of NETD value measurement.
作者
王京飞
陈彦冠
WANG Jing-fei;CHEN Yan-guan(The 11th Research Institute of China Electronics Technology Group Corporation,Beijing 100015,China)
出处
《红外》
CAS
2023年第12期24-31,共8页
Infrared
关键词
红外探测器
噪声等效温差
测试环境
噪声
infrared detector
noise equivalent temperature difference
test environment
noise
