省、市红外技术应用交流会论文题录索引

〔1〕〔2〕〔3〕远红外干燥加热浅谈、远红外简易辐射测试、远红外用转物资烘房、远红外烘布机,上棉十七厂科研室直热式硅钢带红外辐射器元件在消防器材加热工艺上的应用,湖南省长沙消防器材厂,刘洪志直热式硅钢带红外辐射器元件的研究,湖南省长沙消防器材厂,刘洪志低温硅碳棒及其在食品烘烤炉上的应用,洛阳市食品工业公司,樊树德远红外加热技术在油漆干燥中的应用,安阳自行车二厂,赵福林高很远红外辐射涂料在金属热处理电阻炉上的应用,广州光学应用研究所,孙荣凯论红外加热技术,上海硅酸盐研究所,夏继余王正深胡仲寅陈文通远红外辐射加热的…     

红外辐射加热机理与应用技术的方法

本文主要通过讨论红外辐射加热技术机理与各物质加热干燥固化的复杂关系 ,在提高能源利用率条件下 ,为探讨加热技术分析与工程应用量化提供参考。分 6部分 :1)不同边界条件红外辐射与物质热作用下匹配吸收与外匹配吸收理论应用机理分析与研究。2 )辐射加热作用各种物质中 ,辐射     

上升段气动加热对飞行中段高速飞行器红外辐射特性影响分析EI北大核心CSCD

飞行中段高速飞行器红外辐射特性是对其进行红外探测、识别及跟踪的基础。飞行中段高速飞行器红外辐射与表面温度密切相关,而飞行器表面温度又与上升段气动加热、空间环境热辐射、防热材料结构等有关,特别是上升段气动加热对飞行中段飞行器红外辐射的影响不容忽视。为获得复杂环境背景下高速飞行器在飞行中段的红外辐射,综合考虑上升段气动加热、环境辐射加热、表面辐射散热和结构热传导等主要因素影响,采用气动热工程计算模型、空间辐射加热、一维多层热传导计算方法,建立了高速飞行器红外辐射分析技术,实现了气动加热、环境辐射加热、自身辐射散热、结构热传导等多种主要因素影响下的高速飞行器飞行中段温度场和红外辐射分析。结果表明:上升段的气动加热会对飞行中段的高速飞行器红外辐射产生较大影响;在飞行中段,飞行器在长波8~12μm波段的红外辐射强度明显大于在中波3~5μm波段的红外辐射强度,选择8~12μm波段更有利于对飞行中段高速飞行器的探测。     

红外辐射加热中有关问题的分析

在红外辐射加热技术中,被加热物料对红外辐射的吸收、辐射能谱转移和元件发射率的作用等是一个重要的问题。本文将对它们进行较为深入的分析。     

红外辐射加热材料

红外辐射加热材料是红外辐射加热器的基础。本文结合科研工作,概述了各种红外辐射加热材料的特征。     

全国第四届红外加热技术发展研讨会在长春举行

由中国光学学会红外光电器件专业委员会、中国光学光电子行业协会红外专业分会、中国电工学会电热专业委员会、中国光学学会锦州分会、吉林省能源学会红外研究会共同举办的全国第四届红外加热技术发展研讨会,于1993年8月2日～6日在吉林省长春市举行。来自全国各地高等院校、科研院所和工厂的代表50人出席了会议,共交流论文40余篇,内容涉及红外辐射加热理论、辐射测量、加热元件(含涂料)、工程设计及各类应用。代表们认真地进行了学术交流,围绕红外加热节能技术进行了热烈的讨论。天津大学褚治德教授提出的高中温定向辐射、辊     

红外快速煤车解冻暖房改造成功

我国东北、内蒙和西北地区的火力发电厂、热电厂冬季用煤 ,由于长途运输 ,到达发电厂煤冻在车内 ,冻层厚度 2 0 0～ 50 0mm ,无法卸车。所以北方发电厂都有一个或两个大型暖冻暖房。传统的加热方式 ,大都采用蒸汽热风加热 ,解冻时间长达10～ 14h ,这样中、大型发电厂冬季用煤就     

红外辐射光谱在玻璃和熔体结构研究中的应用

介绍了FT-IR辐射光谱的理论基础和利用5-DX FT-IR光谱仪进行辐射光谱测量的方法，讨论了样品的自吸收效应，加热温度、选择性反射带和粒度以及衬底等物理条件对红外辐射光谱的影响，最后介绍 了FT-IR辐射光谱在玻璃和熔体结构研究中的应用。     

气动加热对红外成像的影响试验研究

介绍了在气动加热条件对红外成像的影响试验研究的情况,利用电弧风洞产生高温,高超声速流场,模拟红外窗口的气动加热,红外图像由高温黑体产生,利用高速红外热像仪接收红外目标的辐射。通过对穿过高温流场、模型之后的红外图像测量分析,初步揭示了气动加热对光学传输的影响。     

对当前红外加热干燥技术中一些问题的看法

一、目前在工、农业生产中广泛推广应用的远红外加热干燥技术,其实质是高辐射率的热辐射加热干燥。通过提高辐射源的辐射率,实现节能和提高生产效率,这是科学有效的措施,值得在一切需要加热和干燥的领域里大力推广应用。它必将在我国“四化”建设中,为大量节能、节电,提高生产效率作出贡献。但目前对红外加热干燥的机理研究还很少,红外知识普及也不够,因而存在不少模糊和错误的认识。要进一步推广、提高,必须加强机理研究和红外知识的普及。二、热辐射理论和实验测量均表明:对温度在摄氏几十度至几百度范围内的红外辐射(即热辐射)源,其辐射波长范围主要在2—15微米,辐射最大的峰值波长在5—6微米附近,这就是目前在工、农业加热干燥技     

Preservation studies on canine kidneys recovered from the deep frozen state by microwave thawing

Uniform heating of frozen canine kidneys (-79 to 23 ± 10°C) has been achieved using a microwave heating system at 2450 MHz. The kidneys contained the cryoprotective agent dimethyl sulfoxide; Uniform cooling was obtained at 1°C/min, with fluorocarbon perfusion down to -40°C. Slow environmental cooling was used from -40 to -79°C, the temperature at which the organs were stored for periods up to several days. After microwave thawing at rates between 2 and 4°C/s, temperature differences were ≤10°C, provided the initial perfusion of the kidney had been complete and uniform. For comparative purposes, these microwave heating rates were also applied to organs immediately after perfusion cooling to +4°C. Microfil injection and histological studies of thawed and reimplanted kidneys have shown some preserved capillary blood vessels, but, as yet, frozen-thawed kidneys have not functioned. Viability tests-oxygen and para-amino-hippurate (PAH) uptake-- have been performed on kidney slices recovered from -79 or -196°C by the same method. As yet PAH uptake has not survived kidney slice thawing, although light microscopic structure of these slices is well preserved. The work describes a complete System for the uniform deep freezing and thawing of whole organs, a system in which all the variables can be controlled, and from which viability studies can be established.     

远红外加热在自行车涂装工艺上的应用

简介了三种适用于自行车涂装工艺中的远红外加热元件,指出由远红外加热元件所组成的固化烘道是一种辐射、传导和对流的耦合加热方式。综合分析了这类烘道在实际使用中的烘温曲线,并得出结论:对氨基醇酸漆而言,合理布置SHQ石英管和优质碳化硅板,就能得到理想的固化烘道,其烘温曲线为正态分布。     

激光加热时冷冻生物组织内解冻过程的数值模拟

对激光加热时冷冻生物组织内的解冻过程进行了数值模拟。结果发现,虽然激光对生物组织的加热具有容积加热的特点,但以激光为热源时,生物组织内的解冻过程仍然呈现出与普通热源加热时的解冻过程相似的规律。组织吸收系数对解冻过程有较大影响,吸收系数越高,组织解冻过程越趋于普通热源加热时的解冻过程。     

Annual temperature and radiobrightness signatures for bare soils

The authors have developed physically based, diurnal, and annual models for freezing/thawing moist soils subject to annual insolation, radiant heating, and cooling, and sensible and latent heat exchanges with the atmosphere. Both models have the same weather forcing, numerical scheme, and soil constitutive properties. The authors find that surface temperature differences over a diurnal cycle between the annual and diurnal models are as much as -5 K in March, -7 K in June, -4 K in September, and 5 K in December for 38% (by volume fraction) moist soil. This difference occurs because the annual model includes the history of energy fluxes at the surface of the soil. The annual model is linked to microwave emission models for predictions of temporal radiobrightness signatures. The model predicts a relatively weak decrease in diurnal differences in soil temperature with increased moisture content, but a significant decrease in diurnal differences in radiobrightness. It also exhibits notable perturbations in radiobrightness when soils freeze and thaw. The moisture dependent, day-to-night radiobrightness difference is enhanced by as much as -42 K at 19.35 GHz horizontal polarization for frozen soil if daytime thawing occurs     

Microwave modeling and validation in food thawing applications

Developing temperature fields in frozen cheese sauce undergoing microwave heating were simulated and measured. Two scenarios were investigated: a centric and offset placement on the rotating turntable. Numerical modeling was performed using a dedicated electromagnetic Finite Difference Time Domain (FDTD) module that was two-way coupled to the PHYSICA multiphysics package. Two meshes were used: the food material and container were meshed for the heat transfer and the microwave oven cavity and waveguide were meshed for the microwave field. Power densities obtained on the structured FDTD mesh were mapped onto the unstructured finite volume method mesh for each time-step/turntable position. On heating for each specified time-step the temperature field was mapped back onto the FDTD mesh and the electromagnetic properties were updated accordingly. Changes in thermal/electric properties associated with the phase transition were fully accounted for as well as heat losses from product to cavity. Detailed comparisons were carried out for the centric and offset placements, comparing experimental temperature profiles during microwave thawing with those obtained by numerical simulation.     

冻结开关控制生物网络液体电路中的信号传输(英文)

通过引入一种新概念型电开关,首次提出研究生物网络液体电路或具有普遍意义的导电性微流体系统中的电学关断问题,通过有选择性地对通路中的水性电溶液实施冻结,则其内在特定方向上传输电流的离子可因溶液冻结后绝缘性的形成而被完全阻断,而一旦复温融化后,则此微流体电路中的电流又恢复其开启状态。为初步证实上述设想,设计了相应的概念性试验,通过检测溶液或生物系统在冻结及加热时的电阻瞬态响应规律,证实了方法的可行性。总结了冻结性电开关在控制导电性液体电路方面的工作性能及其在电泳分析、液相色谱分析以及在控制神经网络中信号传输方面的潜在应用。     

电热膜红外图像生成技术研究

研究了电热膜的红外特性,测试了电热膜温度分辨率和空间分辨率,发现电热膜在控温精度和控温区域尺度的精确程度等方面完全符合目前红外伪装的分辨率要求.制备了含有某一目标的电热膜样品,并获取了电热膜的红外图像,证实电热膜能够形成目标的温度分布,达到红外示假目的.     

A system for controlled microwave heating of small samples.

A system for the controlled thawing and heating of small samples in a waveguide is described. A means of maintaining constant absorbed power within the sample over a wide range of sample parameters is a major feature of the system. Provision for sensing the melting point of immersed samples is include. Samples are continuously rotated to improve heating uniformity.     

长航时UAV蒙皮红外辐射强度的工程计算

无人机（Unmanned Aerial Vehicle,UAV）蒙皮的红外辐射特性是对UAV进行探测识别的重要依据,而UAV蒙皮的气动力加热、太阳辐射换热、地球辐射换热等是影响UAV蒙皮辐射特性的主要因素。在综合考虑了环境以及UAV自身辐射的情况下,建立了UAV蒙皮红外辐射的计算模型,采用向前差分法求出了UAV蒙皮的一维导热微分方程,并在此基础上,结合UAV蒙皮材料的发射率,计算了在某一平面上UAV红外辐射强度的分布情况。计算结果表明:蒙皮在8~14 m波段处红外辐射强度远大于3~5 m波段的红外辐射强度;相同波段处,蒙皮正上方的辐射强度大于正下方的辐射强度。     

Microwave blood plasma defroster.

A microwave blood plasma defroster capable of thawing up to four bags of frozen blood plasma at a time is described. The unit stops automatically when the plasma reaches a preset temperature, and all operating parameters are monitored for safety. Comparative testing showed that blood plasma thawed in this device was indistinguishable from plasma thawed in a water bath.