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This report discusses the basic concepts of piezoelectric transducers used as sensors and two circuits commonly used for signal conditioning their output. Contents
Piezoelectric thin films can be deposited on semiconductor platforms (through a number of methods such as atomic-layer-deposition, sputtering, chemical vapor deposition (CVD), etc.) processes. Examples: aluminum nitride (AlN), zinc oxide (ZnO), lead zirconate titanate (PZT).
The book fills an urgent need for a unified source of information on piezoelectric devices and their astounding variety of existing and emerging applications. Some of the chapters focus more on the basic concepts of the different disciplines involved and are presented in a didactic manner.
Figure 1.1 (a) The direct piezoelectric effect provides an electric charge upon application of a mechanical stress, whereas (b) the converse piezoelectric effect describes the situation where strain develops under an applied electric field.
Basic concepts of piezoelectricity are presented in Chap. 1 along with an introduction into the field of microgravimetric sensors; appendices A and B, at the end of the book, include fundamental concepts of electrostatics
Introduction to Piezoelectric Actuators and Transducers. Kenji Uchino, International Center for Actuators and Transducers, Penn State University University Park, PA 16802. Abstract. Certain materials produce electric charges on their surfaces as a consequence of applying mechanical stress.
1 Ιαν 2014 · Due to their high stiffness, compact dimensions, and extremely high positioning resolution, piezoelectric actuators are used exclusively in the vast majority of nanopositioning systems. This chapter introduces piezoelectric actuators and describes their...
