激光技术, 2020, 44 (4): 411, 网络出版: 2020-07-16   

激光辐照非制冷微测辐射热计的理论研究

Research on laser irradiation uncooled microbolometer based on finite element analysis
作者单位
陆军工程大学石家庄校区 电子与光学工程系,石家庄 050003
摘要
为了研究非制冷微测辐射热计的激光损伤阈值,根据非制冷微测辐射热计的构造和成像原理,分析了像元温度响应机制,推导出了零偏置下和单次偏置时间内像元受到激光辐照的温度增量计算公式;建立了激光辐照非制冷微测辐射热计的有限元分析模型,结合实际工作条件加载热源载荷进行仿真,模拟了激光造成软损伤的过程。结果表明,激光软损伤阈值可按照零偏置条件下像元温度响应的公式近似计算,其对应的温度偏差不大于3%。该研究为激光压制干扰红外成像系统的损伤阈值计算提供了参考。
Abstract
In order to study the laser damage threshold of an uncooled microbolometer, according to the construction and imaging principle of uncooled microbolometer, the temperature response mechanism of the pixel was analyzed, and the formula for calculating the temperature increment of the laser under the zero offset and single offset time was derived. A finite element analysis model of laser irradiated uncooled microbolometer was established. Simulation was carried out by loading the heat source load in combination with actual working conditions. Then the process of soft damage caused by laser was simulated. The conclusion was drawn: laser soft damage threshold approximate calculation of the pixel temperature response under zero bias conditions can be used to meet 3% accuracy. This study provides a reference for the calculation of damage threshold for laser suppression interference infrared imaging systems.
参考文献

[1] WOOD R A. Uncooled thermal imaging with monolithic silicon focal planes[J].Proceedings of the SPIE, 1993,2020:322-329.

[2] YU X J, ZHENG Y Ch, GUO Ch L, et al. Analysis of infrared detectability hypersonic vehicles under different background[J]. Laser Technology, 2018, 42(5): 627-632(in Chinese).

[3] SUN Ch W, LU Q Sh, FAN Zh X, et al. Laser irradiation effect [M]. Beijing: National Defense Industry Press, 2002:7-12(in Ch-inese).

[4] KONG L B, YI X J, WANG D H, et al. Development of 320×240 long-wave non-cooling microbolometer infrared thermal imager[J].Acta Photonics Sinica, 2002,31(5):85-89(in Chinese).

[5] FIEQUE B, TISSOT J L, TROUILLEAU C, et al. Uncooled microbolometer detector: Recent developments at ULIS[J]. Opto-Electronics Review, 2006, 14(3):187-191.

[6] SUN L J. Research on performance and signal processing circuit of microbolometer array [D]. Nanjing: Nanjing University of Science and Technology, 2008:16-36(in Chinese).

[7] LENG Y P, L J, ZHOU Y, et al. Research on non-uniformity and on-chip correction circuit of focal plane array of microbolometer[J]. Infrared, 2010, 31(12):7-11(in Chinese).

[8] YANG F B. Infrared physics and technology [M]. Beijing: Publishing House of Electronics Industry, 2014:89-103(in Chinese).

[9] ZHENG Y L, HU Y H, ZHAO N X, et al. Analysis of the influence of pulse width and repetition frequency on damage threshold of HgCdTe detector[J]. Laser Technology, 2018, 42(2): 265-270(in Chinese).

[10] BI J, CHEN G B, JIN G Y, et al. Analytical modelling of annular millisecond laser-induced damage in silicon[J]. Lasers in Engineering (Old City Publishing), 2014, 29(3): 175-187.

[11] CHEN Y, LU J, NI X, et al. Plastic penetration during laser heating of a metal plate[J]. Journal of Materials Processing Technology, 2008, 205(1/3): 9-15.

[12] QIN Y, CHEN Y, NI X, et al. Axisymmetric numerical simulation of plastic damage in aluminum alloy induced by long pulsed laser[J]. Optics and Lasers in Engineering, 2010, 48(3): 361-367.

[13] ZHANG J J. Research on imaging system of focal plane array of microbolometer[D]. Nanjing: Nanjing University of Science and Technology, 2006:9-17(in Chinese).

[14] RADFORD W A, MURPHY D, RAY M, et al. 320×240 silicon microbolometer uncooled IR FPAs with on-chip offset correction[J]. Proceedings of the SPIE, 1996, 2746:82-92.

[15] TISSOT J L, CHATARD J P, FIEQUE B, et al. High performance and low thermal time constant amorphous silicon based on 320×240 uncooled microbolometer IRFPA[J]. Proceedings of the SPIE, 2004, 5640:94-99.

周冰, 贺宣, 刘贺雄, 李秉璇, 张炎. 激光辐照非制冷微测辐射热计的理论研究[J]. 激光技术, 2020, 44(4): 411. ZHOU Bing, HE Xuan, LIU Hexiong, LI Bingxuan, ZHANG Yan. Research on laser irradiation uncooled microbolometer based on finite element analysis[J]. Laser Technology, 2020, 44(4): 411.

本文已被 1 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!