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点状远红外发射源及其组合的辐照特性

单绍琪 伍锦鸣 文雅欣 李汴生 郭晓雪 黎玉茗 阮征 李丹丹 吴子东

单绍琪, 伍锦鸣, 文雅欣, 李汴生, 郭晓雪, 黎玉茗, 阮征, 李丹丹, 吴子东. 点状远红外发射源及其组合的辐照特性[J]. 红外技术, 2021, 43(1): 79-88.
引用本文: 单绍琪, 伍锦鸣, 文雅欣, 李汴生, 郭晓雪, 黎玉茗, 阮征, 李丹丹, 吴子东. 点状远红外发射源及其组合的辐照特性[J]. 红外技术, 2021, 43(1): 79-88.
SHAN Shaoqi, WU Jinmin, WEN Yaxin, LI Biansheng, GUO Xiaoxue, LI Yuming, RUAN Zheng, LI Dandan, WU Zidong. Irradiation Characteristics of Point-shaped Far-Infrared Emission Source and Combination[J]. INFRARED TECHNOLOGY, 2021, 43(1): 79-88.
Citation: SHAN Shaoqi, WU Jinmin, WEN Yaxin, LI Biansheng, GUO Xiaoxue, LI Yuming, RUAN Zheng, LI Dandan, WU Zidong. Irradiation Characteristics of Point-shaped Far-Infrared Emission Source and Combination[J]. INFRARED TECHNOLOGY, 2021, 43(1): 79-88.

点状远红外发射源及其组合的辐照特性

基金项目: 

国家重点研发计划项目 2017YFD0400400

企业合作科技项目 2018440000340003

详细信息
    作者简介:

    单绍琪(1994-),女,浙江绍兴人,硕士,食品加工与保藏

    通讯作者:

    李汴生(1962-),男,博士,教授,食品加工与保藏。E-mail: febshli@scut.edu.cn

  • 中图分类号: TN219

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

  • 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λ=6, 10 mm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。
  • 图  1  点状远红外发射源

    Figure  1.  Point-Shaped Far-Infrared Emission Source

    图  2  不同远红外材料

    Figure  2.  Different far infrared materials

    (a)Far-infrarpd sintered materials m=5.009g (b)Ceramic fragments m=5.544 g (c)Glass fragments m=5.569 g

    图  3  ① 号远红外发射源功率密度测定定位

    Figure  3.  Power density measurement location of far-infrared emission source①

    图  4  不同远红外材料的功率密度(λ=9μm,L=1 cm)

    Figure  4.  Power density of different far infrared materials(λ=9μm, L=1 cm)

    图  5  相同辐照面积下质量对远红外材料功率密度的影响(λ=9μm,L=1 cm)

    Figure  5.  The effect of mass on the power density of far infraredmaterials under the same irradiation area(λ=9μm, L=1 cm)

    Note:M1=3.007 g; M2=6.000 g; M3=9.006 g a, b: Significant difference in different groups at the same temperature, p < 0.05

    图  6  相同质量下辐照面积对远红外材料功率密度的影响(λ=9μm,L=1 cm)

    Figure  6.  The effect of irradiation area on the power density of far-infrared materials at the same mass(λ=9μm, L=1 cm)

    Note:D1=2 cm; D2=3 cm; D3=4 cm a, b, c: Significant difference in different groups at the same temperature, p < 0.05

    图  7  不同远红外发射源功率密度比较(λ=9μm,L=1 cm)

    Figure  7.  Power density comparison of different far infrared emission sources(λ=9μm, L=1 cm)

    图  8  不同温度下①号远红外发射源在不同波长下的功率密度

    Figure  8.  The power density of far-infrared emitters① at different wavelengths and temperatures

    图  9  不同法向距离下①号远红外发射源功率密度(λ=9μm,r=0 cm)

    Figure  9.  Power density of far-infrared emitters① at different vertical distances(λ=9μm,r=0 cm)

    图  10  70℃下远红外发射源①法向辐照强度的拟合结果(λ=9μm)

    Figure  10.  Fitting result of the normal radiation intensity of the far-infrared emission source at 70℃ (λ=9μm)

    图  11  不同半径下远红外发射源功率密度(λ=9μm、L=6 cm)

    Figure  11.  Power density of far-infrared emitters① with different radii(λ=9μm、L=6 cm)

    图  12  点状远红外发射源功率分布示意图

    注:虚线同心圆为L=3 cm时功率密度分布示意;虚线箭头表示远红外射线  单位:cm

    Figure  12.  Power distribution of point-shaped far-infrared emission source

    Note: The dashed arrow indicates far infrared rays when the dashed concentric circle is L=3 cm, the distribution of far-infrared rays is shown

    图  13  两个①号远红外发射源组合功率密度分布

    Figure  13.  Combined power density distribution of two No. ① far infrared emission sources

    图  14  组合式远红外发射源的分布模型

    Figure  14.  Distribution model of combined far-infrared emission source

    Note: A is the far-infrared emission source ① Unit: cm

    图  15  组合式远红外发射源功率密度测定点分布

    Figure  15.  Distribution of power density measurement points of combined far-infrared emission source

    图  16  组合式远红外发射源功率密度分布(λ=9μm、T=90℃、L=3 cm)

    Figure  16.  Power density distribution of combined far-infrared emission source(λ=9μm、T=90℃、L=3 cm)

    表  1  r=0 cm下①号红外发射源功率密度的衰减率

    Table  1.   The decay rate of power density of far-infraredemission source① at r=0 cm

    Temperature/℃ 110 100 90 80 70
    Attenuation rate/% L=1 cm 0.00 0.00 0.00 0.00 0.00
    L=2 cm 6.29 8.00 0.42 1.58 0.94
    L=3 cm 11.08 10.98 5.95 7.96 6.42
    L=4 cm 31.19 30.78 27.88 29.74 30.36
    L=5 cm 44.22 44.83 42.59 43.78 43.81
    L=6 cm 55.84 54.88 52.93 52.55 51.61
    L=7 cm 59.36 59.61 57.50 58.64 58.59
    L=8 cm 65.61 65.76 63.94 65.05 65.34
    L=9 cm 70.38 69.27 67.73 68.46 67.09
    下载: 导出CSV

    表  2  不同温度下远红外发射源①法向辐照强度的拟合结果(λ=9 µm)

    Table  2.   Fitting results of far-infrared emission source ① normalradiation intensity attenuation at different temperatures(λ=9μm)

    Irradiation temperature/℃ I Attenuation coefficient σ Goodness of fit R2
    110 0.03248 -20.04 0.9600
    100 0.02705 -20.22 0.9637
    90 0.02276 -20.13 0.9697
    80 0.01826 -20.15 0.9675
    70 0.01428 -20.20 0.9748
    下载: 导出CSV

    表  3  L=6 cm下远红外发射源功率密度的衰减率

    Table  3.   Decay rate of power density of rar-infrared emissionsource① at L=6 cm

    Temperature/℃ 110 100 90 80 70
    Attenua-tion rate/% r=1 cm 0.00 0.00 0.00 0.00 0.00
    r=2 cm 26.82 28.97 30.10 30.99 31.41
    r=3 cm 43.44 43.98 44.15 44.59 44.88
    r=4 cm 71.54 68.26 67.22 67.39 66.54
    r=5 cm 84.88 78.75 73.99 72.10 71.61
    r=6 cm 96.86 96.11 95.53 94.51 94.05
    r=7 cm 100.00 100.00 100.00 100.00 100.00
    r=8 cm 100.00 100.00 100.00 100.00 100.00
    下载: 导出CSV
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  • 收稿日期:  2020-06-24
  • 修回日期:  2020-12-24
  • 刊出日期:  2021-01-20

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