压电陶瓷基础激励下激振幅度的标定方法

研究了压电陶瓷基础激励下激振幅度的标定方法,来准确获得它的激振幅度大小.首先,提出了一种简便而又可靠的幅度标定方法,并建立了压电陶瓷基础激励下的悬臂梁动力学模型.然后,在明确其标定原理的基础上,采用理论和实验相结合的方式来解决压电陶瓷基础激励下激振幅度的标定问题,并详细叙述了标定的方法及流程;最后,利用该方法对一款PZT陶瓷的基础激振幅度进行了标定,证明了方法的有效性和实用性.

A Calibration Method on Base Excitation Amplitude of Piezoelectric Ceramic Exciter

This paper researched how to accurately obtain base excitation amplitude of piezoelectric ceramic exciter (PCE) by some calibration methods. Firstly， a simple and reliable calibration method was proposed. The dynamics model of cantilever beam under base excitation of PCE was established to clarify calibration principle and simulate calibration process. Next， the calibration and test system of base excitation amplitude of PCE was set up. The key steps of this method were explained in details. At last， practicability and effectiveness of above calibration method were demonstrated by experiment.