单音片振动式液体粘度测量仪的研究

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，仪器同时配有温度传感器，可测得实时温度，该传感器与计算机配合使用时，即可成为一种高精度的液感器，可测得实时温度，该传感 器与计算机配合使用时，即可成为一种高精度的液感器，可测得实时温度，该传感器与计算机配合使用时，即可成为一种高精度的液体粘度测量仪器，文中对仪器的测量数据进行了分析，这种仪器具有响应速度快、精度高、使用方便等特点，可广泛用于石油、化工、仪器等领域。

Research of Self-Excitation Piezoelectric Liquid Viscosity Sensor

The measuring principle and structure characteristic of the monotone plate vibration sensor, which can be used to measure the viscosity of liquid, are described. When the monotone plate exciting by the self-excited vibration of the piezoelectric ceramic is immersed into liquid, the viscosity of liquid can be measured. The measured data achieved by this instrument are analysed too. The instrument has equipped with a built-in temperature sensor for measuring the real-time temperature. The sensor is associated with a computer, then a kind of high precision measuring instrument of the viscosity of liquid is formed. It has features of fast response, high precision and convenience of operation. The instrument can be widely used in the fields of petroleum, chemical and food industry etc.