Machine vibration frequency high, 3000 ~ 3600 times per minute, amplitude small-only 0.5 ~ 1, can be used in the viscous drug screening points, its screening efficiency.
该机振动频率高，每分钟3000 ~ 3600次，振幅小只有0.5 ~ 1，可以使用于粘性药分的筛分，其筛分效率高。
Compared with forced vibration tests, the ambient vibration test is more convenient and it has enough accuracy for the small amplitude response characteristics.
与强迫振动试验相比，环境振动试验比较简单、方便，所确定出的小振幅水平下的木塔结构动力特性具有足够的精度。
A method of measuring small vibration with an amplitude lower than half that of the wavelength of laser is developed.
研究振动幅度小于激光半波长的微小振动的测量方法。
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