电子科技大学学报2011，Vol.40Issue(6)：946-950,5.DOI:10.3969/j.issn.1001-0548.2011.06.027
光声方法测量金属材料的热扩散率及热溢出率
Thermal Diffusivities and Thermal Effusivities of the Metal Materials Studied by the Photoacoustic Technique
摘要
Abstract
The thermal diffusivities and thermal effusivities of metal materials have been measured by the Photoacoustic Technique. Firstly, based on the simplified R-G model, the one-dimensional theory of photoacoustic was analyzed. The corresponding experimental system has been set up, by which the photoaoustic signal of the solid photoacoustic cell can be obtained. Secondly, the thermal diffusivity and thermal effusivity of reference samples were measured, by which the experimental system can be validated. Finally, the diffusivities and effusivities of several kinds of metal material were studied by the photoacoustic cell system. Comparing with the corresponding reference data, it is shown that the photoacoustic techniques can be used to measure both the thermal diffusivity and effusivity of metal materials effectively. The relative error between the experiment data and the reference data are less than 3%.关键词
金属材料/金属材料/光声技术/固体光声池/热扩散率/热溢出率Key words
metal material/ photoacoustic/ solid photoacoustic cell/ thermal difiusivity/ thermal effusivity分类
数理科学引用本文复制引用
高椿明,鲁旭,张希仁,万丹,赵斌兴..光声方法测量金属材料的热扩散率及热溢出率[J].电子科技大学学报,2011,40(6):946-950,5.基金项目
国家自然科学基金(50506006) （50506006）
