极大多数的情况下应用电动振动台，因为它能在一定广的频率范围内工作并且能准确地控制波形。
Electrodynamic shakers are used in most cases because they can operate over a broad frequency range with accurately controlled waveform.
以纵波形式借由固体、液体或气体传播的物理扰动。声波是由振动的物体产生。
Mechanical disturbance that propagates as a longitudinal wave through a solid, liquid, or gas. A sound wave is generated by a vibrating object.
使用TD800测试系统，能够实时地测出转动副轴心的运动轨迹、振动波形以及轴在空间的运动姿态。
The orbit and the vibration of the pin center and the attitude of the axis of pin in the revolute joint are measured by the TD800 test system.
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