通过对6480型驱动桥的噪声功率、表面声强、表面声压、表面振动加速度以及相应的时频谱进行了全面、系统的测量和分析。
The noise power, sound intensity, sound pressure, vibration acceleration and corresponding time-frequency spectrum of 6480 driver axle surface were measured and analysed.
在振动与噪声测量实验基础之上分析总结了磁悬浮转子系统振动和噪声的分布情况，从而进一步验证了磁悬浮转子系统的支承特性。
The bearing characteristics of the magnetic suspension rotor system were validated based on the result of the analyse of the vibration and the noise measurement experiment.
在不同的锯切工艺参数和锯片结构下，测量了噪声值、噪声功率、噪声电压、振动功率和振动幅值，并对其进行频谱分析。
Noise value, noise power, noise voltage, vibration power and amplitude vibration were measured under different cutting parameters of technology and frequency spectrum analysis was also made.
本文提出的机械测量仪设计方案，经试制具有精度高，体积小，结构简单，操作和携带方便、无振动和噪声的优点。
This paper provide a new design, it has high accuracy, small volume, simple structure, easy operating and bring and no vibration and noise.
本文提出的机械测量仪设计方案，经试制具有精度高，体积小，结构简单，操作和携带方便、无振动和噪声的优点。
This paper provide a new design, it has high accuracy, small volume, simple structure, easy operating and bring and no vibration and noise.
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