Piezoelectric Bending Transducers The Physics of Their Static and Dynamic Behaviour A Textbook About Indispensable Actuators in Microtechnology, Mechatronics and Medical Technology

The wide range of industrial applications for piezoelectric bending transducers as actuators and high-precision positioning systems requires their performance to be adapted to the respective task. This presupposes that it is already possible to predict the static and dynamic behaviour of such actuator structures in the respective application during the design and development phase. The geometric dimensions of the individual active and passive layers, their sequence in the layer system and their elasto- and electromechanical properties are key factors here. 

This book focuses on the analytical description of the static and dynamic behaviour of piezoelectric multilayer bending transducers. It is intended to provide students of natural sciences and engineering as well as engineers and scientists in practice with a solid engineering tool for the design of piezoceramic bending transducers. The benefits of the analytical description obtained are demonstrated based on real measurements on a monomorph in multilayer technology. The requirements for understanding the material are limited to basic knowledge of one- and multidimensional analysis as well as elementary Newtonian mechanics, technical mechanics and electricity.

Introduction.- Piezoelectricity.- Piezoelectric Functional Ceramics PZT.- Preparation and Manufacturing of PZT Ceramics.- Energy Density of Elastic Deformation.- Energy Density.- n the Electrostatic Field.- Piezoelectric Equations of State.- Static Behaviour of Piezoelectric Bending Transducers.- Lagrange Equations and Aspects of Calculus of Variations.- Hamilton’s Principle and Piezoelectric Bending Transducers.- Dynamic Behaviour of Piezoelectric Bending Transducers.- Piezoelectric Bending Transducer as an.- lectromechanical System.- Measurement Setup for Piezoelectric Bending Transducers.- Comparison of Measurement Results and Analytical Calculations.

Prof. Dr.-Ing. Rüdiger G. Ballas holds the professorship for electrical engineering and is at Wilhelm Büchner Hochschule Darmstadt, Germany. In addition to his activity as vice dean of the department of engineering sciences at Wilhelm Büchner Hochschule, his research activities focus in particular on piezoelectric materials, sensors and actuators as well as onpiezoelectric energy harvesting and (micro-)electromechanical systems (MEMS). Before his university career he held leading positions in research and development at different companies concerned with piezoelectric sensors and actuators. He earned his doctorate degree at Technical University Darmstadt, Germany for his research work in the field of piezoelectric multilayered bending actuators. During his pre-doctoral studies he already received several awards for outstanding work in the field of microstructuring of quartz crystals for high-frequency applications in modern telecommunications technologies. Furthermore, in2017 he received the IAAM Medal due to notable and outstanding contribution in the field of “New Age Technology & Innovations”, Stockholm, Sweden. He is author of various publications and author/co-author of several textbooks published by the renowned publisher Springer Nature. Besides amateur astronomy, his passionate hobbies include playing acoustic fingerpicking/fingerstyle guitar and singing.