| 光热辐射测量技术的三维和一维理论研究 |
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| 引用本文： | 闫长春,刘诚,杨春艳,薛国刚.光热辐射测量技术的三维和一维理论研究[J].应用激光,2004,24(6):399-401. |
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| 作者姓名： | 闫长春 刘诚 杨春艳 薛国刚 |
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| 作者单位： | 徐州师范大学物理系,221116 |
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| 基金项目： | 江苏省教育厅重点项目ZXL0 5 0 30 4资助 |
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| 摘 要： | 根据连续调制激光辐照样品的一维与三维理论。并对其进行比较 ,得到无论是高热扩散率还是低热扩散率材料 ,只要频率大于 4 0Hz时 ,光热辐射测量三维理论可以用一维理论代替。及样品热扩散率越低 ,一维光热辐射测量理论和三维理论一致 ,所需要的频率就越低。这就为何时使用一维光热辐射测量理论提供依据。
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| 关 键 词： | 光热辐射测量技术 一维 三维 理论 |
Research on the 3-D and 1-D theories of photothermal radiometry |
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| Yan Changchun,Liu Cheng,Yang Chunyan,Xue Guogang.Research on the 3-D and 1-D theories of photothermal radiometry[J].Applied Laser,2004,24(6):399-401. |
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| Authors: | Yan Changchun Liu Cheng Yang Chunyan Xue Guogang |
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| Abstract: | Based on the 3-D and 1-D theories of samples irradiated by continuously modulated beam, and compared with the two theories, while frequency is beyond 40 Hz, the 3-D theory of Photothermal Radiometry is replaced completely by the 1-D one in spite of high thermal diffusivity samples or low ones. And thermal conductivity is lower; the better agreement with the 1-D theory and 3-D theory is obtained. It is theoretic foundation for when to use 1-D theory of the photothermal radiometry. |
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| Keywords: | photothermal radiometry 1-D 3-D theory |
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