| 利用积分球反射法的动态热物性测量装置研制 |
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| 引用本文： | 范毅,李成伟,戴景民,萧鹏. 利用积分球反射法的动态热物性测量装置研制[J]. 哈尔滨工业大学学报, 2003, 35(6): 671-673,754 |
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| 作者姓名： | 范毅 李成伟 戴景民 萧鹏 |
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| 作者单位： | 哈尔滨工业大学,自动化测试与控制系,黑龙江,哈尔滨,150001 |
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| 基金项目： | 全国优秀博士论文作者专项基金资助项目 ( 19992 9)，哈尔滨工业大学重点学科基金资助项目 |
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| 摘 要： | 介绍了利用积分球反射计的脉冲加热技术测量材料热物性的一种方法和测量装置的各组成部分及工作原理．被测的带状试样被一脉冲大电流加热，利用高速高温计测量试样的辐射温度，同时利用积分球反射法获得试样的半球向光诺反射率，进而得到试样的法向光谱发射率、比热、电阻率和全波长半球发射率．该装置具有试样制各简单、测试精度高等优点．
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| 关 键 词： | 积分球反射法 动态热物性测量装置 脉冲加热瞬态测量法 工程材料 测量原理 脉冲供电回路 真空容器 高速高温计 同步高速数据采集系统 |
| 文章编号： | 0367-6234(2003)06-0671-03 |
Development of millisecond pulse-heating apparatus by reflectometric technique |
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| FAN Yi,LI Cheng wei,Dai Jing min,XIAO Peng. Development of millisecond pulse-heating apparatus by reflectometric technique[J]. Journal of Harbin Institute of Technology, 2003, 35(6): 671-673,754 |
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| Authors: | FAN Yi LI Cheng wei Dai Jing min XIAO Peng |
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| Abstract: | The development of a millisecond pulse heating apparatus using a new pulse-heating reflectometric technique is described. The normal spectral emissivity of strip specimens was measured using this technique. The hemispherical spectral reflectivity of the surface of a strip tangent to an integrating sphere is determined by a high speed lock in technique. At the same time, the radiance temperature of the strip is measured by high speed pyrometry. The heat capacity, electrical resistivity, total hemispherical emissivity and spectral emissivity of the specimen can be measured by using this apparatus for some materials. |
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| Keywords: | dynamic measurement pulse heating technique reflectometric techniques measurement of thermophysical properties |
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