夫兰克-赫兹实验中影响板极电流因素浅析  

Analysis the Factors Influence Plate Current in Franck-Hertz Experiment

作　　者：张建民[1] 才让卓玛[1] 

机构地区：[1]陕西师范大学,陕西西安710062

出　　处：《大学物理实验》2014年第4期66-69,共4页Physical Experiment of College

基　　金：国家自然科学基金(51071098)

摘　　要：通过公式与绘图比对实验测得的数据,研究电子与氩原子的夫兰克-赫兹实验中不同阴极电压、第一栅极电压、反向电压下,板极电流随加速电压的变化情况。分析板极电流发生变化的规律及原因,观察测得数据及其绘制的夫兰克-赫兹曲线找出对实验研究负向影响最小的阴极电压、第一栅极电压、反向电压的参考数值。Through formula and drawing ratio on experimental data measured,Study of electron and argon atom,frank -Hertz experiment different cathode voltage,the first grid voltage,reverse voltage,the anode current with the change of acceleration voltage. Analysis of anode current change rule and reason of observation of measured data,frank-Hertz curve drawing and find out the negative influence of experimental study the smal-lest cathode voltage,the first grid voltage,the reverse voltage reference value.

关 键 词：温度 阴极电压 第一栅极电压 加速电压 反向电压 

分 类 号：O4-33[理学—物理]