【摘要】 采用光调制法测量光速,直接对光进行调制得到调幅波,采用差频技术测量高频信号的相差,根据相位变化测量波长,得出光速并分析了误差。提出了改进方法,明显减小了实验误差。更多还原

【Abstract】 Light speed is measured by light-modulation method,i.e.the wave of amplitude modulation is created by modulating ligh directly,subsequently,the phase contrast is measured in the light of beat frequency indication,the wave length is measured according to phase change,thus the light speed is obtained and then the error is analyzed.This essay put forward a developed method which would obviously minish error.更多还原