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.
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)
关键词
温度
阴极电压
第一栅极电压
加速电压
反向电压
temperature cathode voltage the first grid voltage acceleration voltage reverse voltage
