摘要
针对具体的微射流压电气喷器件进行了仿真和实验测试,通过阻抗谱分析得到压电气喷器件对应前两阶轴对称振动模式的频谱特性,有效实现压电气喷器件与驱动电路的最佳阻抗匹配,为获得最佳的气体喷射提供了基础条件;利用激光扫描多普勒技术分析了压电结构的振动模态、表面速度、位移幅度分布,并与有限元数值仿真结果做了比较取得了很好的一致性。
The detailed emulation calculation and experimental test are developed for the practical piezoelectric micro airflow jet. The best impedance match between the prototype jet and driving circuit can be obtained through impedance analysis of the former two axisymmetric mode shapes. The vibration modes, distribution of displacement and velocity of the piezoelectric micro airflow jet are also measured by Scanning Laser Doppler Vibrometer. The experimental results have good correspondence with the calculated results by FEM.
出处
《压电与声光》
CSCD
北大核心
2003年第5期429-432,共4页
Piezoelectrics & Acoustooptics
基金
国家自然科学基金(50235010)
