稳态法测不良导体导热系数实验装置的改进  

The Improvement of the Experimental Device of Measuring the Thermal Conductivity of Poor Conductor by Using the Steady State Method.

作　　者：闫锡杰[1] 

机构地区：[1]通化师范学院物理系,吉林通化134002

出　　处：《通化师范学院学报》2002年第5期60-63,共4页Journal of Tonghua Normal University

摘　　要：传统的稳态法测量不良导体的导热系数是用红外线灯泡当作热源,用热辐射的方式对被测样品进行加热。新改进的加热方式是用电熨斗当热源,采用接触的方式进行加热。实践证明:新改进的加热方式具有实验操作简单,测量的结果误差小,节省电能,降低成本等特点。The traditional steady state method uses infrared bulb as heat producer to measure the thermal conductivity of poor conductor and thermal radiation to heat the measured sample, while the improved heating way uses electric iron as heat source and adopts the way of contact to heat up. The practice shows that the improved way of heating posesses the qualities of easier operation, smaller error of the measuring result, saving electric energy and reducing cost.

关 键 词：稳态法 实验装置 导热系数 温差热电偶 散热速率 热流量 

分 类 号：O551.3[理学—热学与物质分子运动论]