Research Theme Reference
Micromotors Using Electro-Cojugate Fluids(ECF)
Dr.Ootsubo, Professor of Chiba University, one of our co-researchers, has found a kind of dielectric liquids. We call the liquid as Electro-Conjugate Fluids (ECF)

ECFs produce strong jet flow when applied high electric field between rod-type poles.

We apply the ECF to micro-motors which have simple structure and very light-weight.The micro Motors have two-types, Cylinder-type and Disk-Plate-type.

The photo shows C-stator-type ECF motor with ID4mm (0.6grams), 3500rpm@6kV, max efficency 17%. Also, the rotary-type has a potencial to have greater power.

Trans. of JSME,
Vol.64,No.642C,
pp.627/633,(2000)
The photo shows C-rotor-type ECF motor with ID4mm (0.6grams), 4000rpm@6kV.

Trans. of JSME,
Vol.66,No.651C,
pp.3799/3804,(2000)

The photo shows C-rotor-type ECF motor with ID2mm (0.2grams), 2000rpm@6kV. Shinichi YOKOTA,Masakazu Hirata, Yutaka KONDOH, Koich Suzumori, Atsushi Sadamoto, Yasufumi Otsubo, Kazuya Edamura : A Micro-Motor Using Electro-conjugate Fluids (ECF) (Fabrication of inner Diameter 2mm RE-type ECF Motor), the Journal of Robotics and Mechatronics, Vol.13,No.2, pp140/145,  (2001)

The photo shows the structure of C-rotor-type ECF motor with ID2mm.
The photo shows Drag-plate-stator-type ECF motor.
The photo shows Drag-plate-rotor-type ECF motor.
The photo shows Stack-type Drag-plate-rotor Micro-ECF motor.

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