夫兰克-赫兹实验的改进

An improvement on Franck-Hertz experiment

对传统的测量氩原子第一激发电位的方法进行了改进,利用示波器光标"cursor"功能,在示波器上直接读出波峰或波谷的电位.该方法减小了读数时的误差,提高了测量精度,并且锻炼了学生对示波器的使用,收到较好的教学效果.

The traditional method of measuring the first excitation voltage of argon atom was im-proved .Using the“cursor”function ,the potential values of the peaks and troughs were read from the oscilloscope directly .T his method reduced the reading error ,improved the accuracy of measurement , and trained the students’ skills of oscilloscope operation .