大学物理 ›› 2016, Vol. 35 ›› Issue (5): 53-56.

• 编者按 • 上一篇    下一篇

电热法测量热功当量实验的新探究

蔡 晨,李朝荣,李英姿,王 选   

  1. 北京航空航天大学物理科学与核能工程学院,北京 100191
  • 收稿日期:2015-10-07 修回日期:2015-11-18 出版日期:2016-05-20 发布日期:2016-05-20
  • 作者简介:蔡晨(1994—),男,河北涿州人,北京航空航天大学物理科学与核能工程学院2013 级本科生.

A new exploration in determination of mechanical equivalent of heat by electrothermal method

CAI Chen,LI Chaorong,LI Yingzi,WANG Xuan   

  1. School of Physics and Nuclear Energy Engineering,Beihang University,Beijing 100191 China
  • Received:2015-10-07 Revised:2015-11-18 Online:2016-05-20 Published:2016-05-20

摘要: 提出一种新的实验方案来处理电热法测量热功当量实验中装置的散热问题.采用积分法计算热功当量,求得的热功当量数值更加接近理论值,并且一元线性拟合实验数据时得到的线性关系非常强烈.

关键词: 热功当量, 散热系数, 线性回归, 相关系数

Abstract: A new experimental method is proposed to resolve the heat dissipation problem of the device in determination of mechanical equivalent of heat by electrothermal method. Based on integral method,the result of mechanical equivalent of heat is more close to the theoretical value,and the data exhibits strong linear relationship through simple linear regression.

Key words: mechanical equivalent of heat, coefficient of heat transfer, linear regression, correlation coefficient