About the book
With the development and progress of science and technology, many fields put forward higher demand for the manufacturing industry. Piezoelectric actuators and transducers have been widely studied which can achieve millisecond response speed, nanoscale accuracy, power-off self-locking, no electromagnetic interference, and no magnetic field generated. Owing to the above merits compared with traditional electromagnetic actuators, piezoelectric actuators and transducers have been used in aerospace engineering, biomedical engineering, artificial intelligence, micro-nano processing, 3D print, etc. With the joint efforts of researchers, many novel type precision piezoelectric actuators and transducers have been developed to realize linear motion, rotary motion, and multi-degree-of-freedom motion; and some solutions to improve the output performance, including velocity, load capacity, and accuracy, have been provided to broaden the industrial application.
The purpose of this work is to comprehensively summarize the latest progress of precision piezoelectric actuators and transducers, such as ultrasonic motors, piezoelectric stick-slip actuators, piezoelectric direct-drive actuators, piezoelectric pumps, and piezoelectric valves. The corresponding working principles, excitation signals, design theoretical framework, novel structure, and control methods will be introduced in detail. This work will provide a reference and guidance for the subsequent development of piezoelectric actuators and transducers.