激光辐射多功能集成防护镜光学特性与复合技术

为了对激光和微波辐射进行有效防护,研究了防激光-微波-激光探测告警一体化的多功能防护镜与复合技术,采用多功能防护材料与复合技术、夹层材料与真空热压复合技术、抗冲击防溅射眼防护技术、分体和组合式可调防护镜技术进行了多功能防护性能测试,以及环境适应性能、生物效应和工效学测试.介绍了多功能防护镜复合技术特征、光学特性和相关技...     

激光防护镜的研究、发展与现状

本文结合作者的工作,评述了自1964年至1987年国内外各种不同工作原理的激光防护镜的研究和发展状况。     

激光防护镜防护性能测试方法国家军用标准研究

制定了与人眼生理卫生防护要求有关的《激光防护眼镜防护性能测试方法》国家军用标准。本标准适用于研制、生产、装备和使用中的吸收、反射和复合式激光防护眼镜及军用设备窗口材料的防护性能测试。     

全息激光防护镜特性研究

从柯格尔尼克耦合波理论出发,用数字计算法讨论了全息型防护镜片的特性参数,与样品实测结果进行了对比讨论。     

多功能激光告警信号处理技术研究

与传统激光告警设备相比,多功能激光告警设备的信号类型及通道数量大幅增加,信号处理的复杂度增加。为了实现多功能激光告警设备的信号处理功能,对主要信号特征进行了阐述,提出了抗干扰处理、信号通道识别等信号处理技术。通过硬件及软件算法设计,该技术能够满足多功能激光告警设备的技术要求,对工程实践具有重要指导意义。     

激光对人眼的危害和防护

叙述了激光对人眼的危害作用，阐明了激光防护的重要性。列出了激光防护镜的标准。介绍了如何选择激光防护镜。     

激光眼损伤安全防护问题的研究

从不断发生激光意外眼损伤的事故中分析激光系统中潜在的危险因素。针对造成眼灾害原因最多的“激光靶点光斑反射光”做了卫生物理学的实验,讨论了预防激光眼损伤的安全防护措施。     

多波段激光防护塑料夹层玻璃窗口材料的研究

研究了多波段激光防护塑料夹层玻璃的制备工艺,对其性能进行了测试,结果表明,该激光防护材料对紫外、可见、红外波段的多种激光防护效果显著,能见度高,抗激光破坏能力强,稳定性好.     

光限幅材料的研究现状及其在激光防护中的应用

随着激光武器的发展,对相应的对抗措施不断提出更高的要求。光限幅材料体在对抗激光干扰与致盲武器中具有重要的研究价值。作者简要介绍了近年来光限幅材料的研究情况及其在这一对抗领域中的应用研究。     

Modulator of laser radiation

A new mechanical modulator of laser radiation is proposed. The working principle is based on the specific diffraction of coherent radiation by a deep reflection grating with rectangular profile. The modulator can be used in various wavelength ranges.     

高功率密度激光辐射效应

本文描述了在高功率密度激光辐射下,光与物质之间的相互作用机理和实验装置,讨论了强光束自陷现象和受激布里渊散射效应,实验观察了某些材料的破裂与损坏现象,初步分析了实际发生过程的原因,给出了一些实验资料。这些对于防止激光器件、光学系统损坏以及大气传输等有一定参考价值。     

对微弱激光辐射的探测

由于面临越来越严重的激光制导武器的威胁 ,对来袭威胁进行早期预警日趋重要。概要介绍了微弱激光辐射探测技术国外研究现状及发展趋势。对微弱激光辐射探测关键技术进行了研究探讨。     

Software-implemented EDAC protection against SEUs

In many computer systems, the contents of memory are protected by an error detection and correction (EDAC) code. Bit-flips caused by single event upsets (SEU) are a well-known problem in memory chips; EDAC codes have been an effective solution to this problem. These codes are usually implemented in hardware using extra memory bits and encoding/decoding circuitry. In systems where EDAC hardware is not available, the reliability of the system can be improved by providing protection through software. Codes and techniques that can be used for software implementation of EDAC are discussed and compared. The implementation requirements and issues are discussed, and some solutions are presented. The paper discusses in detail how system-level and chip-level structures relate to multiple error correction. A simple solution is presented to make the EDAC scheme independent of these structures. The technique in this paper was implemented and used effectively in an actual space experiment. We have observed that SEU corrupt the operating system or programs of a computer system that does not have any EDAC for memory, forcing the system to be reset frequently. Protecting the entire memory (code and data) might not be practical in software. However this paper demonstrates that software-implemented EDAC is a low-cost solution that provides protection for code segments and can appreciably enhance the system availability in a low-radiation space environment