摘要
本文从一般情形下的多普勒频移公式出发。提出了到目前为止尚无文献提及的相位时空线的概念;运用时间-位置图线等概念分析了机械波频移公式中,观测者相对波源以大于波速的速度背离时频率出现负值的问题,以及观测者相对波源运动与波源相对观测者运动频率变换公式不同的问题。
The article begins with the generic Doppler Effect Formula,submitting the concept of space-time line which has not been referred to by any documents before.With the conepts of space-time lin,it has analysed two diffeent problems in the Doppler Effect Formula .One is that,the frequency will show a negative value when the observer who deviats fom the wave source takes a higher speed of moment than the wave speed.The other is that when the obsever moves related to the wave source and the wave source moves related to the observer,the Doppler Effect Formulas are different.
出处
《安庆师范学院学报（自然科学版）》
2003年第4期45-47,共3页
Journal of Anqing Teachers College(Natural Science Edition)
关键词
多普勒效应
图线
频移公式
相位时空线
机械波
Doppler Effect
the formula of transformation of of frequency
space-time line of phase
