高灵敏度热释电摄象管红外电视系统

针对热释电摄象管(PEV)在传统的对称斩波模式下存在的各种问题,设计了一种新的非对称斩波模式PEV红外电视系统.通过提高PEV摄象机的温度响应率R_i和采用高去噪声信号处理系统,大大改善了PEV红外成象系统的性能.     

Modeling and simulation of the drying of thin sheets in a continuous infrared dryer

The model gives the temperature and moisture distributions of the air, and of the moist sheet, as a function of time and distance in the dryer. The influence of the sheet's velocity and that of the radiant energy on the dryer performance as well as the effect of the moisture content of the entering sheet have been studied. A set of 27 experiments was carried out using the infrared dryer in order to calibrate the model. In these, the following three variables each had three operational levels: web velocity, initial web moisture and heating power. The model predictions agreed very well with the experimental data. Model predictions using arithmetic averages for the parameters, and parameters correlated with operational variables, are also presented and discussed.     

近红外仿灸仪的研制与临床应用

近红外仿灸仪,也称为经络灸疗仪,是采用我国传统医学与现代科学技术相结合而研制成的一种新型中医治疗、保健仪器,可以用于治疗多种疾病。本仪器根据艾灸燃烧时所辐射的光谱,运用仿真技术进行模拟,根除了传统灸法燃烧缓慢、效率不高、烟雾较大、刺鼻熏眼、易于灼伤、操作不便等缺点,充分发挥了我国传统灸法的温经通络、补气活血、化瘀消肿,祛湿止痛的功效。     

IR Radiometry Optical System View Factor and Its Application to Emissivity Investigations of Solid and Liquid Phases

An optical system for fast IR radiometry designed for investigations of thin film thermal properties and pulsed laser melting was analyzed in this work. A methodology for determination of the view factor from calibration measurements was developed. The view factor (0.0255) of the optical system containing two paraboloid mirrors was determined experimentally from calibration measurements on pure metals and metallic alloys. The knowledge of the view factor was then applied to normal emissivity investigations at IR wavelengths. The emissivity of tungsten films prepared by magnetron sputtering was determined for different deposition conditions, varying between 0.036 and 0.071. Liquid phase emissivities of Cu, Mo, Ni, Si, Sn, Ti, and steel were also determined and were found to be higher than solid-state emissivities as predicted from the literature. A knowledge of the liquid-state emissivity of silicon enabled recalculation of the IR signal evolution to the temperature evolution, during and after a nanosecond laser pulse. This was not possible by use of the usual calibration because of silicon’s semi-transparent behavior in the IR range (1–10 μm) in the solid-state phase.     

红外加热节能技术的现状与发展前景

本文综述了国内外节能的现状与发展趋势,论述了远红外电加热领域的发展前景,强调了加强基础理论研究的重要性,介绍了我国红外加热应用的领域和国外新开发的红外产品。     

锅炉炉膛红外成像温度实时检测系统研究

说明电厂锅炉炉膛温度及结焦直接影响锅炉正常运行及安全；给出了基于多探测器的锅炉反应温度红外成像实时测温系统的系统结构、系统原理、系统标定和温度测定方法。     

体积-表面淬火中加热温度的自动控制

根据表面-体积淬火奥氏体规范的要求，分析了感应加热过程中温度控制的特点和方式，并介绍了采用红外线光导纤维测温和微机控温技术成功用于体积-表面淬火中透热温度的自动控制。     

基于图像灰度统计分布的高炉温度场动态定标算法

通过高炉红外图像建立料面温度场是判断高炉煤气流分布形态的一种有效方法,温度定标是建立温度场的基本问题之一.在高炉复杂、恶劣的环境下,本文以高炉十字测温为基础,通过热电偶温度数据和图像对应区域的灰度分布统计,动态地建立温度定标关系.算法具有较好的自适应性,实际生产运行表明,温度定标关系较好地适应了高炉炉况的不确定性,准确地反映了高炉温度场的变化情况.     

GaAs／AlGaAs多量子阱红外探测器的光电流谱

测量了ＧａＡｓ／ＡｌＧａＡｓ多量子阱红外探测器在零偏压、小偏流和大偏压等条件下的光电流谱，并结合理论计算的光跃迁能量讨论了光电流谱的多峰结构和异常增强特性。     

单站被动定位及光电实现

目的　光电技术实现的单站被动定位具有重要的军事价值 ,本文介绍了其原理、方法和发展 .方法　本文中 ,单站被动定位分为激光和红外两部分内容讨论 .结果　明确了采用激光和红外技术的单站被动定位工作原理和存在的技术难点 ,同时 ,指出了被动定位的研究动向 .结论　文章表明单站被动定位及光电实现值得进一步研究 .