Multi degree of freedom spherical ultrasonic motor

This paper presents a multi-degree of freedom spherical ultrasonic motor. As a prototype spherical ultrasonic motor, the authors have successfully developed two kinds of spherical ultrasonic motor with two degree of freedom. Each type has good controllability; the motor can drive a spherical rotor a...

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Bibliographic Details
Published inProceedings of IECON'94 - 20th Annual Conference of IEEE Industrial Electronics Vol. 2; pp. 900 - 905 vol.2
Main Authors Shigeki, T., Shigeru, S., Zhang Guoqiang, Yasutaro, M., Kazuto, N.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1994
Subjects
Actuators
Angular velocity
Controllability
Electric motors
Induction motors
Prototypes
Robotic assembly
Rotors
Stators
Torque
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Summary:This paper presents a multi-degree of freedom spherical ultrasonic motor. As a prototype spherical ultrasonic motor, the authors have successfully developed two kinds of spherical ultrasonic motor with two degree of freedom. Each type has good controllability; the motor can drive a spherical rotor about an arbitrary axis; the maximum speed is 30 rpm; the maximum output torque is 0.7 kg cm; the maximum positioning error is 0.3 mm. It is expected to be applied to not only a robotic manipulator's actuator but also an assembling machine, laser cutting and many other fields.< >
ISBN:0780313283
9780780313286
DOI:10.1109/IECON.1994.397907