点状远红外发射源及其组合的辐照特性  

Irradiation Characteristics of Point-shaped Far-Infrared Emission Source and Combination

作　　者：单绍琪 伍锦鸣[2] 文雅欣 李汴生[1] 郭晓雪 黎玉茗[2] 阮征[1] 李丹丹[1] 吴子东 SHAN Shaoqi;WU Jinmin;WEN Yaxin;LI Biansheng;GUO Xiaoxue;LI Yuming;RUAN Zheng;LI Dandan;WU Zidong(College of Food Science and Engineering,South China University of Technology,Guangzhou 510640,China;Guangdong China Tobacco Industry Co.,Ltd.,Guangzhou 510610,China;Guangzhou Caishi Technology Co.,Ltd,Guangzhou 510000,China)

机构地区：[1]华南理工大学食品科学与工程学院,广东广州510640 [2]广东中烟工业有限责任公司,广东广州5106103 [3]广州才是科技有限公司,广东广州510070

出　　处：《红外技术》2021年第1期79-88,共10页Infrared Technology

基　　金：国家重点研发计划项目(2017YFD0400400);企业合作科技项目(2018440000340003)。

摘　　要：本文先探究3种材料的远红外辐照特性以及质量、辐照面积以及金属对远红外辐照的影响,再以点状远红外发射源为研究对象,研究了点状远红外发射源的不同影响因素及其功率密度分布规律。结果表明:远红外烧结材料的功率密度最高,陶瓷材料次之,玻璃材料最低,并确定了远红外材料功率密度的影响因素有质量、辐照面积以及金属外罩;点状远红外发射源的功率密度随着温度的升高而升高,其功率密度峰值对应的波长主要在l=6,10mm附近。点状远红外发射源其功率密度呈放射状分布,在法向距离L=0~3 cm、平面内半径r=0~1 cm范围内,远红外功率密度衰减率较低,并建立了功率密度E与法向距离L的数学模型。最后据此设计了一种均匀场能的远红外发射源组合模型,验证实验表明该模型场能分布均匀,达到预期。In this study,the far-infrared radiation characteristics of three materials and the effects of different metals on far-infrared radiation were explored.The study used the point-shaped far-infrared emission source as a research object to examine the different influencing factors and power density distribution regulation of the point-shaped far-infrared source.Results indicated that the far-infrared sintered material exhibited the highest power density,followed by the ceramic and glass materials.Factors that affected the power density of far-infrared materials were identified as the quality,irradiated area,and metal cover.The power density of the point-shaped far-infrared source increased with temperature,and the wavelength corresponding to the maximum power density was approximatelyλ=6-10μm.The power density of the point-shaped far-infrared emission source was distributed in a radial manner.In the range of the vertical distance L=0-3 cm and radius r=0-1 cm,the far-infrared power density attenuation rate was low and was designed accordingly.In addition,a mathematical model of power density E and normal distance L was established.Based on these factors,we designed a far-infrared emitter combination model with a uniform field energy.Results revealed that the field energy of this model was evenly distributed to achieve the desired effect.

关 键 词：远红外辐照 发射源 功率密度 分布规律 数学模型 

分 类 号：TN219[电子电信—物理电子学]