论文部分内容阅读
一列平面简谐波其波动过程也可由旋转矢量A表示:t参数使A沿正向(逆时针)以ω旋转至ωt处,x变数使A接着再沿反向(顺时针)以角速度2π/λ旋转至ωt-2π/λ处。 用旋转矢量法可以清晰地描述出驻波的振动图象、波节、波腹的分布及位相特点。
A series of simple harmonic wave fluctuations can also be expressed by the rotation vector A: The t parameter causes A to rotate ω in a positive (counterclockwise) direction to ωt, which in turn causes A to then reverse (clockwise) at an angular velocity of 2π / λ to ωt-2π / λ. Using the rotation vector method can clearly describe the vibration image of the standing wave, nodes, antinodes distribution and phase characteristics.