本文介绍用压电激励器作振源，在安装了附加主轴的普通立式数控铣床上进行实验的结果。
In this paper, piezo actuator as an oscillating source, the author conducted experiments by the ordinary vertical NC fraise in - stalled with additional spindle.
论述了单音片传感器测量液体粘度的原理及结构特点，它是利用压电陶瓷的自激振动激励单音片在液体中振动，从而测得液体粘度。
The measuring principle and structure characteristic of the monotone plate vibration sensor, which can be used to measure the viscosity of liquid, are described.
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