| 激光光热释电效应测量材料热扩散率的研究 |
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| 引用本文： | 王培吉,张仲,范素华. 激光光热释电效应测量材料热扩散率的研究[J]. 中国激光, 2002, 29(1): 76-78 |
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| 作者姓名： | 王培吉 张仲 范素华 |
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| 作者单位： | 山东建材学院物理系,山东,济南,250022 |
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| 摘 要： | 报道了一种利用光热热释电效应检测材料热扩散率的原理与实验方法 ,通过光热热释电技术 ,测量材料热释电信号的相位 ,根据非线性拟合 ,可拟合出材料的热扩散率 ;设计了测量系统 ,并对单向Al2 O3 /Al复合材料进行了测量 ,其结果与其他方法相一致。
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| 关 键 词： | 光热热释电技术 热扩散率 复合材料 |
| 收稿时间： | 2000-11-29 |
Study on Measuring Diffusivity of Materials by Pyroelectric Effect |
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| WANG Pei-ji,ZHANG Zhong,FAN Su-hua. Study on Measuring Diffusivity of Materials by Pyroelectric Effect[J]. Chinese Journal of Lasers, 2002, 29(1): 76-78 |
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| Authors: | WANG Pei-ji ZHANG Zhong FAN Su-hua |
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| Abstract: | An experiment of measuring thermal diffusivity of material by laser pyoelectric effect is reported. The phase of pyoelectric signal is detected by photothermal pyoelectric technique, then the thermal diffusivity of material is determined by nonlinear fitting. The detection system is designed. Single-arrange composite Al 2O 3/Al is measured, and thermal diffusivity at arbitrary direction was measured by this method. |
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| Keywords: | photothermal pyoelectric technique thermal diffusivity composite |
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