This is an introductory work explaining the principles, construction, and use of electric motors and their associated drive controls. It starts from basic physics and progresses to discuss state-of-the-art topics such as piezoelectric motors and vector control. It is largely non-mathematical in its approach and provides an uncluttered overview of the subject, easily accessible to beginning students in electrical and electronic engineering as well as engineers and scientists from other disciplines. This authoritative text is fully illustrated with precise, clear diagrams and photographs.

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...

Stepping motors are used wherever repeated stop-start or intermittent motions are encountered. Found in a diverse range of machines such as clocks, typewriters, automatic draughting machines, numerically controlled machine tools, and computer peripherals, stepping motors offer easy compatibility with digital equipment and ease of control. This thoroughly updated second edition of Stepping Motors offers a practical approach to the subject and relates the workings, design, and construction of these motors to underlying electromagnetic principles. The reader is taken through a brief history of...