...
首页> 外文期刊>Journal of Applied Physics >Simultaneous measurement of thermal diffusivity and optical absorption coefficient using photothermal radio met ry. II Multi layered solids
【24h】

Simultaneous measurement of thermal diffusivity and optical absorption coefficient using photothermal radio met ry. II Multi layered solids

机译:使用光热辐射仪同时测量热扩散系数和光吸收系数。 II多层固体

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       

摘要

The aim of this work is to analyze the ability of modulated photothermal radiometry to retrieve the thermal diffusivity and the optical absorption coefficient of layered materials simultaneously. First, we extend the thermal quadrupole method to calculate the surface temperature of semitransparent multilayered materials. Then, this matrix method is used to evaluate the influence of heat losses by convection and radiation, the influence of the use of thin paint layers on the accuracy of thermal diffusivity measurements, and the effect of lateral heat diffusion due to the use of Gaussian laser beams. Finally, we apply the quadrupole method to retrieve (a) the thermal contact resistance in glass stacks and (b) the thermal diffusivity and optical absorption coefficient depth profiles in heterogeneous materials with continuously varying physical properties, as is the case of functionally graded materials and partially cured dental resins.
机译:这项工作的目的是分析调制光热辐射法同时获取层状材料的热扩散率和光吸收系数的能力。首先,我们扩展了热四极杆方法来计算半透明多层材料的表面温度。然后,该矩阵方法用于评估对流和辐射造成的热损失的影响,使用薄油漆层对热扩散率测量精度的影响以及由于使用高斯激光而产生的横向热扩散的影响梁。最后,我们采用四极杆方法来检索(a)玻璃堆叠中的热接触电阻,以及(b)物理特性不断变化的异质材料的热扩散率和光吸收系数深度分布,例如功能梯度材料和部分固化的牙科树脂。

著录项

  • 来源
    《Journal of Applied Physics》 |2011年第3期|p.248-255|共8页
  • 作者单位

    Departamento de Fisica Aplicada I, Escuela Tecnica Superior de Ingenieria, Universidad del Pais Vasco,Alameda Urquijo sin, Bilbao 48013, Spain;

    Departamento de Fisica Aplicada I, Escuela Tecnica Superior de Ingenieria, Universidad del Pais Vasco,Alameda Urquijo sin, Bilbao 48013, Spain;

    Departamento de Fisica Aplicada I, Escuela Tecnica Superior de Ingenieria, Universidad del Pais Vasco,Alameda Urquijo sin, Bilbao 48013, Spain;

    Departamento de Fisica Aplicada I, Escuela Tecnica Superior de Ingenieria, Universidad del Pais Vasco,Alameda Urquijo sin, Bilbao 48013, Spain;

    Departamento de Matemdtica Aplicada, EINA/IUMA, Universidad de Zaragoza, Campus Rio Ebro,Edificio Torres Quevedo, Zaragoza 50018, Spain;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号