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Micro Nano Gr

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Group Introduction

  We develop several types of actuator, driven under cryogenic and high magnetic fields. We develop thin electromagnetic motors driven without reduction mechanism, and mobile power source for pneumatic actuators. We use ultrasonic, electromagnetic or fluid phenomenon for these requests.

Research Introduction

Development of ultrasonic motor for ultralow temperature condition

  Ultralow temperature environment provide important measuring condition in advanced scientific research area. There are demands for actuators that can drive in ultralow temperature conditions.
  We have succeeded in driving the motor at ultralow temperature under the low temperature condition.

極低温モータ


Ultarasonic motor for solid-state nuclear magnetic resonance

強磁場モータ

  In this study, we aim at applying an ultrasonic motor to a sample rotating mechanism for the high resolution solid state nuclear magnetic resonance (NMR) spectroscopy. An ultrasonic motor can be driven in various environments.
  The motor was used for the solid-state NMR spectroscopy measurement under the high intense magnetic field of 7 T. The NMR signal of sample has been successfully obtained.


Concave type micro ultrasonic transducer using PZT film deposited by the hydrothermal

  Since the hydrothermal method is a reaction in an aqueous solution, the piezoelectric film can be deposited on a substrate having a three-dimensional shape. In this reserch, a concave type micro ultrasonic transducer was fabricated by using the hydrothermal method. In this reserch, a concave type micro ultrasonic transducer was fabricated by using the hydrothermal method.
  The focused ultrasonic wave generated by this transducer is effective for the manipulation of fine particles in a micro region.

水熱合成法