2018年压电器件技术实验室

“弹性板高频振动/压电声波谐振器基础”暑期讲习班

2018年度的宁波大学压电器件技术实验室“弹性板高频振动/压电声波谐振器基础”暑期讲习班圆满结束。本次参加讲习班的学员包括本校师生以及几位来自不同企业的技术人员，是一次学生和企业技术人员充分交流的机会。

和往常一样，本次讲习班的主要内容是王骥教授为大家讲解了弹性波、压电材料、Mindlin板理论、板振动分析、板振动问题的有限元分析以及声波谐振器基础等内容。这些内容和研究生的课题密切相关，也是谐振器设计必须掌握的基本知识和方法。多年来，讲习班活动除了宁波大学的同学参与外，经常也有合作企业的技术人员参加。在今年的讲习班上，王骥教授解释了理解并能够熟练应用这些理论知识对压电声波器件的设计和创新有着重要的意义。今年的讲习班特别邀请了中科院声学研究所的李红浪研究员为大家介绍声表面波谐振器和滤波器件的一些基础知识以及当前设计方法的研究发展状态。在课程内容结束后，实验室部分老师和同学们结合讲习班主要内容，相互交流了自己正在开展的研究工作，讨论了工作中面临的挑战和思路。在讨论会上，老师们针对同学们的研究工作提出一些指导意见，对企业的技术人员提出的有关产品设计问题也给予了一定的建议和指导。

今年基础暑期讲习班的顺利举行，对推进实验室和企业之间的交流，建立密切的合作关系，提升国内压电器件领域的理论分析与方法的研究水平起到积极的作用。

The Summer tutorial on High Frequency Vibration/ the Fundamentals of Piezoelectric Acoustic Resonators of the Piezoelectric Device Technology Laboratory of Ningbo University was successfully concluded in 2018. The attendances of this tutorial are teachers and students of Ningbo University, as well as several technicians from different enterprises, offering a good opportunity for students and enterprise technicians to communicate fully.

As the usual, Professor Ji Wang explained the basic theory of Wave Propagation, Piezoelectric Materials, Mindlin Plate Theory, Vibration Analysis of Plates, FEM of Plate Vibration and Acoustic Piezoelectric Resonators, etc. These contents are closely related to the project of graduate students, and are also the basic knowledge and methods of resonator design. For many years, besides the students of Ningbo University, the activity was also often attended by the technical staff of cooperative enterprises. At this year's class, Professor Wang Ji explained the importance of understanding and applying these theories to the design and innovation of piezoelectric acoustic devices. What’s more, the study group of this year specially invited Researcher Li Honglang from Institute of Acoustics, Chinese Academy of Sciences to introduce some basic knowledge of SAW resonators and filters, and the current research and development status of the designing. At the end of the course, some of the teachers and students in the lab combined with the main contents of the tutorial, exchanged their own ongoing research work, and discussed the challenges and ideas in their work. In the seminar, the teachers put forward some guidance for the students' research work, and gave some recommendations to the problem of related product design, which put forward by the technical personnel of the enterprise.

The successful holding of summer tutorial played a positive role in promoting the communication between schools and enterprises, establishing close cooperative relations, and improving the level of theoretical analysis and method research in the field of piezoelectric devices in China.