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《Journal of Shanghai Jiaotong University》 2017-01
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High Precision Measurement of Specific Heat Using Dual Heating and Cooling

TAO Shengjie;YANG Zhengwei;TIAN Gan;ZHANG Wei;602 Teaching Office,Rocket Force University of Engineering;  
A dual heating and cooling method was proposed to precisely measure specific heat in this paper.The apparatus with no load and with the measured object was heated and cooled respectively.The temperature sequences during the four courses were processed to calculate the specific heat.The proposed method can eliminate the influence of heat dissipation on measurement and significantly improve the precision.A measurement experiment was conducted on a bit of water as specimen.The measurement error is less than1% under normal heat dissipation condition,which validates the effectiveness of the method.The proposed method is suitable for measuring the specific heat of a small sample within certain error limit.It can be operated conveniently on simplified apparatus and realize the specific heat measurement with higher precision in a wider region cooperating with other methods.
【Fund】: 国家自然科学基金资助项目(51575516;51305447)
【CateGory Index】: O551.3
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1 WEI Xiu-fang;CHEN Jian-hong;LIU Zi-jiang;SHAO Dong-yuan;College of Bailie Engineering and Technology,Lanzhou City University;School of Materials Science and Engineering,Southwest University;;Experimental measurement on the relation of metal heat capacity and temperature and comparing with theoretical results[J];西北师范大学学报(自然科学版);2014-02
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