弗兰克-赫兹实验中重复实验的数据稳定性研究
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摘要
弗兰克赫兹实验随时间的延长,在同一加速电压下测量到的电流会呈现先增大、后减小的变化,重复实验造成的温度改变也会对实验结果产生影响,并且这种影响与管内填充的气体种类有关.采用填充氩气的弗兰克赫兹管,并适当增加控制栅极的电压,可以获得更为稳定和准确的实验数据.
The conditions of the Franck-Hertz tube(F-H tube),such as the temperature,always change with the number of experiments.As a result,the measurement data vary.With the prolonged time of Franck-Hertz experiment,the current showed the behavior of increasing first,then decreasing at the same voltage.The effect caused by temperature change should also be considered.And the difference of the gas inside the tube also brought about some effects on the experimental results.Using the F-H tubes filled with argon and increasing the control voltage between grids would make the measurement more stable and reliable.
The conditions of the Franck-Hertz tube(F-H tube),such as the temperature,always change with the number of experiments.As a result,the measurement data vary.With the prolonged time of Franck-Hertz experiment,the current showed the behavior of increasing first,then decreasing at the same voltage.The effect caused by temperature change should also be considered.And the difference of the gas inside the tube also brought about some effects on the experimental results.Using the F-H tubes filled with argon and increasing the control voltage between grids would make the measurement more stable and reliable.
引文
[1] Franck J,Hertz G.ber Zusammenst9e zwischen Elektronen und Molekülen des Quecksilberdampfes und die Ionisierungsspannung desselben[J].Verh.Dtsch.Phys.Ges.1914,16:457-467.
[2] Csele M.Fundamentals of light sources and lasers[M].Hoboken:John Wiley&Sons,2011.
[3]承欢,江剑平.阴极电子学[M].西安:西北电讯工程学院出版社,1986:30-31.
[4]刘复汉.汞原子较高激发能级测量的研究[J].物理实验,1985,5(6):209-212.
[5] Hicks W T.Evaluation of vapor-pressure data for mercury,lithium,sodium,and potassium[J].Journal of Chemical Physics,1963,38(8):1873-1880.
[2] Csele M.Fundamentals of light sources and lasers[M].Hoboken:John Wiley&Sons,2011.
[3]承欢,江剑平.阴极电子学[M].西安:西北电讯工程学院出版社,1986:30-31.
[4]刘复汉.汞原子较高激发能级测量的研究[J].物理实验,1985,5(6):209-212.
[5] Hicks W T.Evaluation of vapor-pressure data for mercury,lithium,sodium,and potassium[J].Journal of Chemical Physics,1963,38(8):1873-1880.