摘要
对电位差计测热电偶电动势实验进行拓展,加入电镀法制备铜-康铜热电堆、考察热电堆电动势与匝数的关系、对比电焊法与电镀法输出电动势等内容,并将学生自制的热电堆用到热流密度实际测量中。实践结果表明,大幅度丰富了传统实验的内容,方案切实可行,能加强学生对热电偶知识的理解,提高学生实际应用电位差计的能力。
Expand the experiments of measure thermocouple EMF with potentiometer,adding content of preparation of copper-constantan thermopile by plating,examine the relationship between EMF and thermopile turns,contrast the EMF of electric welding and plating method,and measure heat flux by the students made thermopile,the results show that： greatly enriched the tradition of the experiment,scheme is feasible,can enhance students＇ understanding on the knowledge of thermocouples,improve students＇ actual ability to apply the potentiometer.
出处
《大学物理实验》
2014年第5期60-63,共4页
Physical Experiment of College
基金
西南科技大学(2014年)实验室开放项目
关键词
热电偶
热电堆
电动势
电位差计
热流密度
thermocouple
thermopile
electromotive
potentiometer
heat flux
