研究活動
　ECF MicroMotors 　ECF MicroActuators 　ECF-jets Pumps 　ERF Valves
　ERF MicroValves 　Micro Machine 　MRF Valves 　MRF MicroValves
　Micro Pumps 　Sensors 　Manipulators 　CPS Systems
 
ECF マイクロアクチュエータ
 
　Suspension-type ERF Micro Valves 　Homogenious-type ERF Micro Valves
 
粒子分散系 ERFバルブ

MicroValves using Suspension-type ERF

Micro suspension-type ERF valve for Inpipe movable micro machine

Micro valves using Suspension-type ERF are proposed and developed. The dispersed particle size of the ERF is 8mm of diameter produced by Fujikura Kasei.The fabricated valve can produce load pressure change of 0.20MPa at maximum electric field strength of 5kV/mm. The micro valves are applied to control an in-pipe micro machine with small-sized bellows-type actuators. The validity of the micro valve is experimentally confirmed through driving the in-pipe mobile micromachine.
 
Micro ERF valve composed of two electrode plates
3-port ERF micro valve
 
ERFV-driven inpipe movable micro machine with the diameter 10mm
Compound ER particles
Principle of the Suspension-type ERF Valve
Research Activities
(1) Yutaka KONDOH, Shinichi YOKOTA: A Control Valve by Making Use of an Electro-rheological Fluid (Design and Fabrication of a Micro Control Valve), Proc. of Second ASCC, Seoul, Vol.2, pp307/310, (1997)
(2) Yutaka KONDOH, Shinichi YOKOTA: Micro In-pipe Mobile Machines by Making Use of an Electro-Rheological Fluid, Proc. of IROS'97, Grenoble, Vol.3, pp1672/1677, (1997)
(3) Yutaka KONDOH, Shinichi YOKOTA: AMicro Control Valve by Making Use of Electro-rheological Fluids, (Control of one-link manipulator with the micro ER valve), Proc. of ASME+IMECE, FPST-Vol4/DSC-Vol.63, Fluid Power Systems and Technology, Dallas, pp55/60, (1997)

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Yoshida-Kim Laboratory