测试环境对亚毫开红外探测器测试结果的影响研究

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。

Study on the Influence of Test Environment on the Test Results of Sub-mK Infrared Detectors

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.