May 27, 2012
2P1-F03 Improvement of a bolt-clamped Langevin Type transducer for a cryogenic ultrasonic motor(Robotics & Mechatronics in Hyper Environment)
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- Event date
- May 27, 2012 - May 27, 2012
- Language
- Japanese
- Presentation type
- Organizer
- The Japan Society of Mechanical Engineers
In this study, an ultrasonic motor used in a cryogenic temperature condition has been fabricated and evaluated. To increase the rotation speed compare to a previous cryogenic ultrasonic motor, the bolt-clamped Langevin type transducer was designed. The PZT was placed at the anti-node of the bending vibration. The transducer was designed to have high vibration speed by using a finite element analysis. The diameter and the length of the motor are 22mm and 30.5mm. The rotation speed was 422rpm at 4.5K when the applied voltage was 50V_<p-p>. We have realized three times higher rotation speed than that of the previous motor.