压电喷墨驱动波形和残余振荡研究  

Research on Piezoelectric Inkjet Drive Waveforms and Residual Oscillations

作　　者：武秋敏 李飒 马依礼 朱慧敏 徐磊 WU Qiumin;LI Sa;MA Yili;ZHU Huimin;XU Lei(Faculty of Printing,Packing Engineering and Digital Media Technology,Xi’an University of Technology,Xi’an 710054,China)

机构地区：[1]西安理工大学印刷包装与数字媒体学院,陕西西安710054

出　　处：《压电与声光》2024年第4期576-581,共6页Piezoelectrics & Acoustooptics

基　　金：陕西省自然科学基础研究计划重点项目(2022JZ-30);陕西省教育部重点科研计划项目(20JY054);国家自然科学基金项目(52075435)。

摘　　要：压电喷墨打印头的结构、驱动波形等直接影响墨滴的喷射特性和打印精度。运用数值仿真软件COMSOL建立了压电喷墨打印头系统模型,研究了驱动参数(电压幅值、电压停留时间、工作频率)对喷射特性(液滴速度和体积)的影响规律。最后,设计了双极驱动波形来抑制残余振荡。结果表明,该消振波形能有效地抑制残余振荡,提高了喷墨打印头的工作频率和稳定性。In a piezo inkjet system,the print head structure,driving waveform,and other factors directly influence the jetting characteristics and printing accuracy.In this study,the numerical simulation software COMSOL was employed to establish a model of piezoelectric inkjet printhead system.The influence of driving parameters—voltage amplitude,voltage residence time,and operating frequency—on jetting characteristics was investigated,specifically droplet velocity and volume.Additionally,a bipolar driving waveform was designed to suppress the residual oscillation.The results demonstrate that the damping waveform effectively suppresses the residual vibration of the pressure wave,significantly improving the working frequency and printing accuracy of the inkjet printhead.

关 键 词：压电喷墨 流体仿真 驱动波形 墨滴特性 残余振荡 

分 类 号：TN384[电子电信—物理电子学] TS853.5[轻工技术与工程]