摘要
通过分析热波传输过程中产生的谐波的振幅谱和相位谱,测量了存在热耗散情况铜棒的热导率.该方法可以简化实验装置,消除谐波引起的系统误差,实验中热对流和热辐射对测量结果的影响可以忽略.
By analyzing the amplitude and phase spectrum of the harmonic waves produced by heat wave transmission,the heat conductivities of good conductors with heat loss were obtained.The instruments were simplified,the system errors were eliminated,and the effects of heat convection and radiation could be ignored.
出处
《物理实验》
北大核心
2011年第9期1-4,共4页
Physics Experimentation
关键词
动态法
热导率
热耗散
良导体
dynamic measuring method
heat conductivity
heat loss
good conductor
