| 基于荧光光谱的玻尔兹曼常量测量 |
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| 引用本文： | 张巍巍,李珊,何兴道,高益庆,陈学岗,朱泉水.基于荧光光谱的玻尔兹曼常量测量[J].大学物理,2011(10):36-38,41. |
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| 作者姓名： | 张巍巍 李珊 何兴道 高益庆 陈学岗 朱泉水 |
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| 作者单位： | 南昌航空大学无损检测技术教育部重点实验室;南昌航空大学大学物理实验中心; |
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| 基金项目： | 江西省自然科学基金(2010GZW0054); 江西省科技支撑计划; 中国航空科技航空检测与评价技术重点实验室开放基金(HK2009001)资助 |
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| 摘 要： | 玻尔兹曼常量的准确测量有助于对温度基本单位的重新定义.本文提出了一类测量玻尔兹曼常量的方法——荧光光谱方法:根据电子占据不同能级的玻尔兹曼分布规律,通过测量不同温度下荧光材料的荧光光谱,分析温度对荧光强度比例的影响,推导得到玻尔兹曼常量kB与hc(普朗克常量与真空光速的乘积)的数值关系.kB值的初步测量结果与目前COD...
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| 关 键 词： | 玻尔兹曼常量 温度 基本单位 |
Determining Boltzmann constant with fluorescent spectroscopy |
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| ZHANG Wei-wei,LI Shan,HE Xing-dao,GAO Yi-qing,CHEN Xue-gang,ZHU Quan-shui.Determining Boltzmann constant with fluorescent spectroscopy[J].College Physics,2011(10):36-38,41. |
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| Authors: | ZHANG Wei-wei LI Shan HE Xing-dao GAO Yi-qing CHEN Xue-gang ZHU Quan-shui |
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| Institution: | ZHANG Wei-wei1,LI Shan1,HE Xing-dao1,GAO Yi-qing1,CHEN Xue-gang2,ZHU Quan-shui2(1.Key Laboratory of Nondestructive Testing of Ministry of Education,Nanchang Hangkong University,Nanchang,Jiangxi 330063,China,2.College Physics Experiment Center,China) |
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| Abstract: | The Boltzmann constant kB is used in the new definition of temperature unit-Kelvin.In this article,the fluorescent spectroscopic method is introduced to determine this constant.Population of electrons in thermal coupled levels of phosphors can be described with the Boltzmann distribution.Based on temperature dependent photoluminescence of a phosphor,the Boltzmann constant is derived from the relationship between measured relative intensity and temperature.Relationship between kB and hc(the Planck constant m... |
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| Keywords: | Boltzmann constant temperature fundamental unit |
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