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Updated: Jul 7, 2026
08:39
Multiplexing Focused Ultrasound Stimulation with Fluorescence Microscopy
Published on: January 7, 2019
Hybrid transducer type ultrasonic motor
1Res. Lab. of Precision Machinery and Electron., Tokyo Inst. of Technol., Yokohama.
Summary
A novel ultrasonic motor utilizes a torsional vibrator and piezoelectric actuators for efficient, bidirectional motion. This design achieves high mechanical output power and torque, offering greater design flexibility.
Area of Science:
- Mechanical Engineering
- Materials Science
- Robotics
Background:
- Ultrasonic motors offer precise motion control.
- Existing designs face limitations in power, efficiency, or design freedom.
Purpose of the Study:
- To propose and fabricate a novel ultrasonic motor design.
- To achieve high mechanical output power, efficiency, and bidirectional motion.
- To explore design flexibility through arbitrary Lissajous's figures.
Main Methods:
- Fabrication of a prototype ultrasonic motor.
- Stator design incorporating a torsional vibrator and multilayered piezoelectric actuators.
- Operation at the resonance frequency of the torsional vibration.
Main Results:
- The prototype motor demonstrated a maximum torque of 7 kg-cm.
- A maximum efficiency of 33% was achieved.
- The design allows for arbitrary Lissajous's figures at the contacting surface.
Conclusions:
- The proposed ultrasonic motor design is feasible and effective.
- The motor exhibits high performance in terms of torque and efficiency.
- The design offers significant advantages in terms of motion control and design freedom.
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