This volume covers important subjects in the field of piezoelectric devices and applications with the latest research on piezoelectricity, acoustic waves, manufacturing technology, and design techniques. It includes up-to-date research and information on materials, new products, technological trends, and design methods of benefit to academics and researchers in the piezoelectric device industry. Contributors to this volume include prominent experts such as Clemens Ruppel of Epcos, Daining Fang of Tsinghua University, Tong-Yi Zhang of University of Science and Technology, Hong Kong, and CS Lam of TXC Corporation. A number of papers have been dedicated to Professor Harry F Tiersten of Resselear Polytechnic Institute, who passed away in 2006, for his contributions to the fundamental theory of piezoelectricity and methods for acoustic wave device analysis.

This volume covers important subjects in the field of piezoelectric devices and applications with the latest research on piezoelectricity, acoustic waves, manufacturing technology, and design techniques. It includes up-to-date research and information on materials, new products, technological trends, and design methods of benefit to academics and researchers in the piezoelectric device industry. Contributors to this volume include prominent experts such as Clemens Ruppel of Epcos, Daining Fang of Tsinghua University, Tong-Yi Zhang of University of Science and Technology, Hong Kong, and CS Lam of TXC Corporation. A number of papers have been dedicated to Professor Harry F Tiersten of Resselear Polytechnic Institute, who passed away in 2006, for his contributions to the fundamental theory of piezoelectricity and methods for acoustic wave device analysis.

Surface Acoustic Wave Devices and Their Signal Processing Applications is a textbook that combines experiment and theory in assessing the signal processing applications of surface acoustic wave (SAW) devices. The operating principles of SAW devices are described from a circuit design viewpoint. This book is comprised of 18 chapters and begins with a historical background on surface acoustic waves and a discussion on the merits of SAW devices as well as their applications. The next chapter introduces the reader to the basics of acoustic waves and piezoelectricity, together with the effect of acoustic bulk waves on the performance of SAW filters. The principles of linear phase SAW filter design and equivalent circuit models for a SAW filter are then described. The remaining chapters focus on trade-offs in linear phase SAW filter design; compensation for second-order effects; harmonic SAW delay lines for gigahertz frequencies; and coding techniques using linear SAW transducers. The final chapter highlights Some other significant alternative design techniques and applications for SAW devices. This monograph will be suitable for engineering or physics students as well as engineers, scientists, and technical staff in industry who seek further information on SAW-based circuits, systems, and applications.

In this book, application-related studies for acoustic biomedical sensors are covered in depth. The book features an array of different biomedical signals, including acoustic biomedical signals as well as the thermal biomedical signals, magnetic biomedical signals, and optical biomedical signals to support healthcare. It employs signal processing approaches, such as filtering, Fourier transform, spectral estimation, and wavelet transform. The book presents applications of acoustic biomedical sensors and bio-signal processing for prediction, detection, and monitoring of some diseases from the phonocardiogram (PCG) signal analysis. Several challenges and future perspectives related to the acoustic sensors applications are highlighted. This book supports the engineers, researchers, designers, and physicians in several interdisciplinary domains that support healthcare.

This volume covers important subjects in the field of piezoelectric devices and applications with the latest research on piezoelectricity, acoustic waves, manufacturing technology, and design techniques. It includes up-to-date research and information on materials, new products, technological trends, and design methods of benefit to academics and researchers in the piezoelectric device industry. Contributors to this volume include prominent experts such as Clemens Ruppel of Epcos, Daining Fang of Tsinghua University, Tong-Yi Zhang of University of Science and Technology, Hong Kong, and CS Lam of TXC Corporation. A number of papers have been dedicated to Professor Harry F Tiersten of Resselear Polytechnic Institute, who passed away in 2006, for his contributions to the fundamental theory of piezoelectricity and methods for acoustic wave device analysis. Readership: Graduate students, academics, researchers, and professionals in piezoelectric devices and applications for communication, sensors, MEMS, and other systems.

Piezoelectric Transducers and Applications provides a guide for graduate students and researchers to the current state of the art of this complex and multidisciplinary area. 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. Others go deeper into the complex aspects of specific fields of research, thus reaching the technical level of a scientific paper. Among other topics resonant sensors, especially bulk acoustic wave thickness shear mode resonators, chemical and bio-sensors, as well as broadband ultrasonic systems are treated in-depth.

SAW devices are widely used in multitude of device concepts mainly in MEMS and communication electronics. As such, SAW based micro sensors, actuators and communication electronic devices are well known applications of SAW technology. For example, SAW based passive micro sensors are capable of measuring physical properties such as temperature, pressure, variation in chemical properties, and SAW based communication devices perform a range of signal processing functions, such as delay lines, filters, resonators, pulse compressors, and convolvers. In recent decades, SAW based low-powered actuators and microfluidic devices have significantly added a new dimension to SAW technology. This book consists of 20 exciting chapters composed by researchers and engineers active in the field of SAW technology, biomedical and other related engineering disciplines. The topics range from basic SAW theory, materials and phenomena to advanced applications such as sensors actuators, and communication systems. As such, in addition to theoretical analysis and numerical modelling such as Finite Element Modelling (FEM) and Finite Difference Methods (FDM) of SAW devices, SAW based actuators and micro motors, and SAW based micro sensors are some of the exciting applications presented in this book. This collection of up-to-date information and research outcomes on SAW technology will be of great interest, not only to all those working in SAW based technology, but also to many more who stand to benefit from an insight into the rich opportunities that this technology has to offer, especially to develop advanced, low-powered biomedical implants and passive communication devices.

The transformation of vibrations into electric energy through the use of piezoelectric devices is an exciting and rapidly developing area of research with a widening range of applications constantly materialising. With Piezoelectric Energy Harvesting, world-leading researchers provide a timely and comprehensive coverage of the electromechanical modelling and applications of piezoelectric energy harvesters. They present principal modelling approaches, synthesizing fundamental material related to mechanical, aerospace, civil, electrical and materials engineering disciplines for vibration-based energy harvesting using piezoelectric transduction. Piezoelectric Energy Harvesting provides the first comprehensive treatment of distributed-parameter electromechanical modelling for piezoelectric energy harvesting with extensive case studies including experimental validations, and is the first book to address modelling of various forms of excitation in piezoelectric energy harvesting, ranging from airflow excitation to moving loads, thus ensuring its relevance to engineers in fields as disparate as aerospace engineering and civil engineering. Coverage includes: Analytical and approximate analytical distributed-parameter electromechanical models with illustrative theoretical case studies as well as extensive experimental validations Several problems of piezoelectric energy harvesting ranging from simple harmonic excitation to random vibrations Details of introducing and modelling piezoelectric coupling for various problems Modelling and exploiting nonlinear dynamics for performance enhancement, supported with experimental verifications Applications ranging from moving load excitation of slender bridges to airflow excitation of aeroelastic sections A review of standard nonlinear energy harvesting circuits with modelling aspects.