闪光法测量热扩散率的有限脉冲效应研究

来源期刊：中南大学学报(自然科学版)1994年第3期

论文作者：刘雄飞 薛健 梁英

文章页码：353 - 358

关键词：闪光法; 热扩散率; 有限脉冲

Key words：flash method; thermal diffusivity; finite pulse time

摘    要：用格林函数法推导了闪光法测定热扩散率的有限脉冲效应的LaRSON方程得到了一个与Larson,对这2个解进行了对比和讨论,指出了Larson在的问题.说明了本文的解较LaRSON的解更加完善和合理.并给出了一个简洁的计算公式.

Abstract: A new solution has been obtained for Larson′s model of finite pulse time effects in the flash method for measuring thermal diffusivity by means of Green′s functions. The solutionis different from Larson′s. The problem existing in Larson′s has been pointed out,and it isexplained that the solution is perfect and more reasonable than that of Larson. A simple equation of calculating thermal diffusivity has been obtained.