首页 | 杂志简介 | 征稿简则 | 投稿指南 | 常见问题 | 名词解释 | 刊物订阅 | 联系我们 | English
某制冷型热像仪关键技术研究
投稿时间:2018-09-08  修订日期:2018-09-18  点此下载全文
引用本文:周宽,刘梁然.某制冷型热像仪关键技术研究[J].红外,2018,39(11):7~10
摘要点击次数: 28
全文下载次数: 32
作者单位E-mail
周宽 华北光电技术研究所 414808486@qq.com 
刘梁然 华北光电技术研究所 liangran2010@sina.cn 
中文摘要:近年来,红外成像技术在国内得到了迅猛发展。根据红外焦平面工作温度的不同,热像仪可以分为制冷型和非制冷型两大类。制冷型热像仪的灵敏度高、性能优越、精度高,但价格昂贵,现主要用于军事领域。某型制冷型热像仪在使用过程中,若成像场景的温度变化较大或者工作于极端环境温度下,在调节积分时间时,图像会出现四角发白中间黑、四角发黑中间白的现象。首先在不同黑体温度下采集了不同积分时间下的红外图像数据。针对上述问题进行了现象复现,然后分析了问题根源,并根据两点校正原理提出了解决思路和办法。最后通过实验数据验证了该方法的正确性,并总结了此类问题的解决方案。
中文关键词:红外成像  积分时间  两点校正
 
Research on Key Technologies of a Refrigeration Type Thermal Imager
Abstract:In recent years, infrared imaging technology has developed rapidly in China. According to the operating temperature, Infrared Focal Plane Arrays (IRFPAs) can be divided into cooled ones and uncooled ones. IRFPAs have the advantages of high sensitivity, high accuracy and excellent performance, but they are expensive. So they are mainly used in the military field now. In the use of a certain cooled infrared thermal imager, if the temperature of the scene changes greatly or if the imager operates at an extreme ambient temperature, a phenomenon may occur, that is, the image may exhibit white in the middle and exhibit black in the corner or vice versa when integration time is adjusted. Firstly, infrared image data are collected at different blackbody temperatures in different integration time. Let the phenomenon be recurrent according to the above problem. Then, the root of the problem is analyzed and the solution is put forward according to the principle of two-point correction. Finally, the correctness of the method is verified by the experimental data and the solutions to the problem are summarized.
keywords:infrared imaging  integration time  two-point correction
查看全文  查看/发表评论  下载PDF阅读器

版权所有:《红外》编辑部

北京勤云科技发展有限公司