新型红外测温仪在教学实验中的应用  

Application of new infrared thermometer in teaching practice

作　　者：吴小国[1] 郭希铭[2] 曹柏林[1] 

机构地区：[1]天津理工学院光电信息与电子工程系,天津300191 [2]天津师范大学物理系,天津300020

出　　处：《天津理工学院学报》2003年第2期64-65,共2页Journal of Tianjin Institute of Technology

摘　　要：新型红外测温仪较好地解决了热辐射的多样性和热辐射理论的同一性之间的矛盾,可以避开"比辐射率修正"的困难.用于教学实验,有利于培养学生的创新精神和解决实际问题的能力.可开设:红外测温原理实验;白炽灯加热电流和灯丝温度的关系;提高金属(钨)电子逸出功的测定精度.还能观察到当有板流输出时,阴极灯丝温度的降低.Diversity of heat radiation and identity of heat radiation theory are contradictory. But new infrared thermometer can solve this problem, and avoid the difficult of 'specific radiation rate revise'. In teaching practice , it is advangtageous at cultivating students' creative spirit and ability of solving practical problem. We can set up some courses, such as:experiment of infrared thermometry principle;the relationship of incandescent lamp heating electric current and filament temperature;improve measuring accuracy of metal (wolfram) electric work function. When boardcurrented output ,we can observe the temperature of filament reduce.

关 键 词：红外测温仪 热辐射 物理教学 实验教学 应用 测温原理 设计思想 

分 类 号：O4－45[理学—物理] TN215[电子电信—物理电子学]