Download or read book Piezoelectric Actuators and Ultrasonic Motors written by Kenji Uchino and published by Springer Science & Business Media. This book was released on 1996-11-30 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: Remarkable developments have taken place in the field of mechatronics in recent years. As symbolized by the "Janglish (Japanese English)" word, mechatronics, the technology and the social adaptation for introducing electronics into mechanics has been readily accepted in Japan. Currently robots are producing many products under computer control in Japanese factories, and supermarkets are utilizing automation systems for sample displays and sales. Further, the fast paced change in semiconductor chip technology has given rise to the need for micro-displacement positioning techniques. Actuators utilizing piezoelectridelectrostrictive effects are expected to meet these needs in mechanical components in the next micro mechatronic age. This book, in English, builds on my earlier publications concerned with ceramic actuators. The first edition titled "Essentials for Development and Applications of Piezoelectric Actuators" was published in 1984 through the Japan Industrial Technology Center. The second edition "PiezoelectriclElectrostrictive Actuators" published in Japanese through Morikita Pub. Co. (Tokyo) became one of the best sellers in that company in 1986, and was then translated into Korean. The problem solving edition "Piezoelectric Actuators -Problem Solving" was also published through Morikita, which was sold in conjunction with a 60 minute video tape to provide easy understanding.
Download or read book Ultrasonic Motors written by Chunsheng Zhao and published by Springer Science & Business Media. This book was released on 2011-10-23 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive tutorial on ultrasonic motors for practicing engineers, researchers and graduate students. "Ultrasonic Motors: Technologies and Applications" describes the operating mechanism, electromechanical coupling models, optimization design of structural parameters, testing methods, and drive/control techniques of various ultrasonic motors and their applications. Dr. Chunsheng Zhao is a professor at Nanjing University of Aeronautics and Astronautics (NUAA) where he is Director of the Precision Driving Laboratory at NUAA. He is a member of the Chinese Academy of Science, and holds 54 patents in China and published more than 400 papers in the field of piezoelectric ultrasonic motors.
Download or read book An Introduction to Ultrasonic Motors written by Toshiiku Sashida and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: An account of ultrasonic motors - a new type of electric motor which employs the piezo-electric effect to give the motive power (rather than electromagnetic interactions in conventional motors). One of the authors, Sashido, is the inventor of the ultrasonic motor.
Download or read book Ultrasonic Motors written by S. Ueha and published by Oxford University Press, USA. This book was released on 1993 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a completely up-to-date survey of the many different types of ultrasonic motors currently in use. These motors, which use ultrasonic vibrations to produce a frictional driving force, have many attractive features, including simple structures which can easily be miniaturized, large power to weight ratios, high torque at low speed, high precision due to low inertia and easy electronic control, and no associated magnetic field. With such advantages, they are increasingly displacing conventional electromagnetic motors in robot actuators, camera autofocus mechanisms, and aerospace devices, to name a few examples. Written by leading experts on the subject, the book introduces the reader to the design and manufacture of the motor as well as to techniques for evaluating motor performance. It will be an invaluable guide to electrical engineering researchers, designers, and manufacturers.
Download or read book An Introduction to Ultrasonic Motors written by Toshiiku Sashida and published by Monographs in Electrical and E. This book was released on 1993 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ultrasonic motor, invented in 1980, utilizes the piezoelectric effect in the ultrasonic frequency range to provide its motive force, resulting in a motor with unusually good low-speed, high-torque and power-to-weight characteristics. This introduction to the general theory of the ultrasonic motor was written by the motor's inventor and an expert in conventional electric motors. It details many of the motor's applications, including those in camera autofocus mechanisms, medical equipment subject to high magnetic fields, and motorized car accessories. Electrical and electronic research engineers as well as students will find this an invaluable introduction to this important new invention.
Download or read book Ultrasonic Transducers written by K Nakamura and published by Elsevier. This book was released on 2012-08-23 with total page 749 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultrasonic transducers are key components in sensors for distance, flow and level measurement as well as in power, biomedical and other applications of ultrasound. Ultrasonic transducers reviews recent research in the design and application of this important technology. Part one provides an overview of materials and design of ultrasonic transducers. Piezoelectricity and basic configurations are explored in depth, along with electromagnetic acoustic transducers, and the use of ceramics, thin film and single crystals in ultrasonic transducers. Part two goes on to investigate modelling and characterisation, with performance modelling, electrical evaluation, laser Doppler vibrometry and optical visualisation all considered in detail. Applications of ultrasonic transducers are the focus of part three, beginning with a review of surface acoustic wave devices and air-borne ultrasound transducers, and going on to consider ultrasonic transducers for use at high temperature and in flaw detection systems, power, biomedical and micro-scale ultrasonics, therapeutic ultrasound devices, piezoelectric and fibre optic hydrophones, and ultrasonic motors are also described. With its distinguished editor and expert team of international contributors,Ultrasonic transducers is an authoritative review of key developments for engineers and materials scientists involved in this area of technology as well as in its applications in sectors as diverse as electronics, wireless communication and medical diagnostics. Reviews recent research in the design and application of ultrasonic transducers Provides an overview of the materials and design of ultrasonic transducers, with an in-depth exploration of piezoelectricity and basic configurations Investigates modelling and characterisation, applications of ultrasonic transducers, and ultrasonic transducers for use at high temperature and in flaw detection systems
Download or read book Piezoelectric Actuators written by Hu Huang and published by BoD – Books on Demand. This book was released on 2021-12-08 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: Taking advantage of high resolution, rapid response, and compact structure, piezoelectric actuators are widely employed for achieving precision positioning in both scientific research and industrial application. With the development of science and technology, the requirements for precision positioning are increasing. Accordingly, great efforts have been made to improve the performances of piezoelectric actuators, and significant progress has been achieved. This book discusses some recent achievements and developments of piezoelectric actuators, in terms of piezoelectric material, driving principle, structural design, modeling, and control, as well as applications.
Download or read book Ultrasonic Motors written by and published by . This book was released on 2003 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultrasonic motors, which have superior characteristics like high torque at low speed, absence of magnetic interference, and compactness in size, are good candidates for medical applications, automation, robotics, aerospace engineering and various other fields. Many different types of ultrasonic motors have been proposed up to date. The stator of an ultrasonic motor that is excited by piezoelectric elements in ultrasonic frequency range develops different kinds of vibrations depending on its structure. From the way of creating an elliptical motion on the stator, ultrasonic motors were classified into two major groups, such as standing wave and traveling wave types. Further classifications include mode-conversion, multi-mode and mode-rotation types of motors that are suitable for miniaturization and can be manufactured less costly. Ultrasonic motors are of great interest due to the flexibility of miniaturization in comparison with conventional electromagnetic motors whose efficiency decreases significantly. Especially in information systems and medical industry, compact size of these motors makes them find wider applications.
Download or read book Piezoelectric Sensors and Actuators written by Stefan Johann Rupitsch and published by Springer. This book was released on 2018-07-26 with total page 559 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces physical effects and fundamentals of piezoelectric sensors and actuators. It gives a comprehensive overview of piezoelectric materials such as quartz crystals and polycrystalline ceramic materials. Different modeling approaches and methods to precisely predict the behavior of piezoelectric devices are described. Furthermore, a simulation-based approach is detailed which enables the reliable characterization of sensor and actuator materials. One focus of the book lies on piezoelectric ultrasonic transducers. An optical approach is presented that allows the quantitative determination of the resulting sound fields. The book also deals with various applications of piezoelectric sensors and actuators. In particular, the studied application areas are · process measurement technology, · ultrasonic imaging, · piezoelectric positioning systems and · piezoelectric motors. The book addresses students, academic as well as industrial reseachers and development engineers who are concerned with piezoelectric sensors and actuators.
Download or read book Traveling Wave Ultrasonic Motors Based on the Piezoelectric Shear Effect written by Martin Schönecker and published by . This book was released on 2009 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Piezoelectric Actuators written by Seung-Bok Choi and published by CRC Press. This book was released on 2016-04-19 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Currently, many smart materials exhibit one or multifunctional capabilities that are being effectively exploited in various engineering applications, but these are only a hint of what is possible. Newer classes of smart materials are beginning to display the capacity for self-repair, self-diagnosis, self-multiplication, and self-degradation. Ultimately, what will make them practical and commercially viable are control devices that provide sufficient speed and sensitivity. While there are other candidates, piezoelectric actuators and sensors are proving to be the best choice. Piezoelectric Actuators: Control Applications of Smart Materials details the authors’ cutting-edge research and development in this burgeoning area. It presents their insights into optimal control strategies, reflecting their latest collection of refereed international papers written for a number of prestigious journals. Piezoelectric materials are incorporated in devices used to control vibration in flexible structures. Applications include beams, plates, and shells; sensors and actuators for cabin noise control; and position controllers for structural systems such as the flexible manipulator, engine mount, ski, snowboard, robot gripper, ultrasonic motors, and various type of sensors including accelerometer, strain gage, and sound pressure gages. The contents and design of this book make it useful as a professional reference for scientists and practical engineers who would like to create new machines or devices featuring smart material actuators and sensors integrated with piezoelectric materials. With that goal in mind, this book: Describes the piezoelectric effect from a microscopic point of view Addresses vibration control for flexible structures and other methods that use active mount Covers control of flexible robotic manipulators Discusses application to fine-motion and hydraulic control systems Explores piezoelectric shunt technology This book is exceptionally valuable as a reference for professional engineers working at the forefront of numerous industries. With its balanced presentation of theory and application, it will also be of special interest to graduate students studying control methodology.
Download or read book Modeling of an Ultrasonic Rotary Motor written by Carlos Cuauht Cuevas Gutierrez and published by VDM Publishing. This book was released on 2008 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultrasonic motors are a new type of actuators that use mechanical vibrations of its stator to drive the rotor through frictional forces between the interface of the stator and rotor. Ultrasonic motors have recently been attracting considerable attention in industrial applications where high precision, fast response and high torque at low speed are desirable. In contrast to traditional electromagnetic motors, ultrasonic motors provide larger torque to volume ratio, silent operation, and compact design. Furthermore, its operation is not affected by electromagnetic fields, and the motor shaft remains braked when the power supply is removed. The commercial development of ultrasonic motors, however, has been limited primarily due to lack of complete models for the purpose of control. Consequently, the development of an accurate model based on the physical structure is extremely vital for controllers development. The present dissertation proposes a comprehensive model for the purpose of predicting the motor performance. A lumped-mass model of the stator is proposed to consider the coupling effects on the stator based on the flexibility influence coefficients, which are estimated from a finite element method. Moreover, the stator natural frequencies are obtained using modal analysis. Nonlinear tangential interface forces between the rotor and stator are incorporated into the driving torque function. A rotor model based on the Stribeck effect, Coulomb and viscous friction is also incorporated to describe the friction torque associated with the motor response. An extensive series of experiments have been designed together with a state-of-the-art test bench built at the laboratory of Concordia University. The validity of the proposed model was examined by comparing the model results with the measured data under different excitation conditions. The lumped-mass model is able to reproduce reasonably well the stator displacements and the excited modes when it is driven at different frequencies as a result of the stiffness coupling. Several rotor model parameters are identified by using the experimental data and a weighted error minimization function. From the results obtained in the present study, it is concluded that the proposed USM model can reproduce reasonably well the motor behavior to different excitations inputs such as step, ramp and harmonic excitations as well as the torque-speed characteristics. It is important to note that the developed model shows torque-speed hysteresis behavior, which has not been reported in literature. To experimentally confirm this new phenomenon, extensive experimental tests have been conducted to identify the torque-speed characteristics on the ultrasonic motor. It has been observed from experiments a clear torque-speed hysteresis in the ultrasonic motor attributed mainly to the friction drive principle at the contact interface. This behavior, however, has not been addressed previously. It is suggested that the lack of an appropriate instrumentation together with inadequate models have made very difficult to describe this phenomenon. On the other hand, the torque-speed hysteresis exhibits a high asymmetric behavior at low speed as a result of the friction torque produced by the Stribeck effect.
Download or read book Power Ultrasonics written by Juan A. Gallego-Juarez and published by Elsevier. This book was released on 2014-11-14 with total page 1167 pages. Available in PDF, EPUB and Kindle. Book excerpt: The industrial interest in ultrasonic processing has revived during recent years because ultrasonic technology may represent a flexible “green alternative for more energy efficient processes. A challenge in the application of high-intensity ultrasound to industrial processing is the design and development of specific power ultrasonic systems for large scale operation. In the area of ultrasonic processing in fluid and multiphase media the development of a new family of power generators with extensive radiating surfaces has significantly contributed to the implementation at industrial scale of several applications in sectors such as the food industry, environment, and manufacturing. Part one covers fundamentals of nonlinear propagation of ultrasonic waves in fluids and solids. It also discusses the materials and designs of power ultrasonic transducers and devices. Part two looks at applications of high power ultrasound in materials engineering and mechanical engineering, food processing technology, environmental monitoring and remediation and industrial and chemical processing (including pharmaceuticals), medicine and biotechnology. Covers the fundamentals of nonlinear propagation of ultrasonic waves in fluids and solids. Discusses the materials and designs of power ultrasonic transducers and devices. Considers state-of-the-art power sonic applications across a wide range of industries.
Download or read book High Power Piezoelectrics and Loss Mechanisms written by Kenji Uchino and published by CRC Press. This book was released on 2020-09-09 with total page 381 pages. Available in PDF, EPUB and Kindle. Book excerpt: As one of the pioneers of "Piezoelectric Actuators", I have contributed to the commercialization of various products for over 45 years, including million-selling devices, micro-ultrasonic motors for smart-phone camera modules by Samsung Electromechanics, piezoelectric transformers for backlight inverters by Apple laptops, multilayer PZT actuators for diesel injection valves by Denso Corporation, and piezoelectric energy harvesting modules for Programable Air-Burst Munition by the US Army. During the development period for "piezoelectric actuators and transformers," I found that the bottleneck for device miniaturization was heat generation under a high-power drive condition. Thus, in parallel to the piezo-actuator developments, I have been developing various high-power density piezo-ceramic materials with the loss mechanism clarification. Hence, I considered that it was time to organize a textbook based on the previous studies, including my materials development philosophy to stimulate younger generations to reach to the energy density of up to 100 W/cm3 in the future. Increasing efficiency and saving energy and space (compactness) are one of the important approaches in this 21st-century "sustainable society." High-Power Piezoelectrics and Loss Mechanisims introduces the theoretical background of piezoelectrics, electromechanical phenomenology, loss mechanisms, practical materials, device designs, drive and characterization techniques, and typical applications, and looks forward to the future perspectives in this field. This book is NOT an overall review of this area, but it focuses on important and basic ideas under my development philosophy to understand how to design and develop high-power piezoelectric materials and devices. This textbook is designed for self-learning by the reader aided by the availability of: • Chapter Essentials – Summary for quick memory recovery • Check Points – Answers are provided in the Appendix • Example Problems – To enhance the reader’s understanding with full, detailed solutions • Chapter Problems – For the final exam or further consideration
Download or read book Piezoelectric Ultrasonic Motors and Micromotors written by Philip Rayner and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific Information Bulletin written by and published by . This book was released on 1992 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book MicroMechatronics written by Kenji Uchino and published by CRC Press. This book was released on 2003-04-25 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reference reveals the most significant technologies, procedures, and trends in the design and application of actuator devices for micromechatronic systems. It addresses critical design and manufacturing concepts, as well as challenges in the modeling and regulation of electromechanical losses and heat generation in actuator devices. Accompanied by a CD-ROM demonstrating examples of finite-element modeling and previously developed and commercially available actuators, Micromechatronics provides insight into the future of this evolving field, and considers recent developments in micropositioning technology and displacement transducer, motor, and ultrasonic motor applications.
