Characteristics of Micro Pump Driven by Conducting Polymer Soft Actuator

2008 ◽  
Author(s):  
Yoshitaka Naka ◽  
Masaki Fuchiwaki ◽  
Kazuhiro Tanaka
Keyword(s):  
Conducting Polymer ◽  
Three Dimensional ◽  
High Viscosity ◽  
Soft Actuator ◽  
Micro Pump ◽  
Micro Flow ◽  
Soft Actuators ◽  
Opening And Closing ◽  
Viscosity Fluid ◽  
Energy Consumption Rate

The development of micro pumps are actively conducted in recent years. A micro pump used for μ-TAS transports at a micro flow rate with a high precision. Moreover, it is also needed to transport high-viscosity fluid since there are various types of drugs to be transported. Micro pumps with various driving systems have been developed so far. In this study, the authors propose a micro pump with soft actuators by conducting polymers as a driving source. We have realized the conducting polymer soft actuator with opening and closing movement. The opening and closing movement of the soft actuator in which the cation driving layer is arranged inside becomes large since the anion driving layer arranged outside drives predominantly. The opening and closing movement is realized by the characteristic that three dimensional deformations are suppressed by setting slits in a sheet-shaped soft actuator and straight-shaped soft actuators in the slits synchronize and deform. It is possible to build a micro pump that transports fluid in one direction by a micro pump with two soft actuators with opening and closing movement and that it can transport fluid even with the viscosity that is 140 times as large as that of water in addition. The micro pump with two soft actuators with opening and closing movement proposed in this paper transports fluid with an energy consumption rate less than half those of others.

Performance of a Micro Pump Driven by Conducting Polymer Soft Actuator Based on Polypyrrole

2010 ◽  
Vol 93-94 ◽  
pp. 615-618 ◽  
Author(s):  
Masaki Fuchiwaki ◽  
Yoshitaka Naka ◽  
Kazuhiro Tanaka
Keyword(s):  
Conducting Polymer ◽  
Flow Rate ◽  
High Viscosity ◽  
Soft Actuator ◽  
Sensing Systems ◽  
Micro Pump ◽  
Essential Components ◽  
Micro Flow ◽  
Soft Actuators ◽  
Opening And Closing

Micro pumps are essential components of micro-fluidic systems and bio-sensing systems. In particular, the micro pump used for -TAS transports fluids at a micro flow rate with high precision. This micro pump is also used to transport high-viscosity fluids because there are various types of drugs to be transported. We developed a micro pump driven by a conducting polymer soft actuator that opens and closes. Although the developed micro pump contains no valve, the micro pump can transport fluids in one direction without backflow. A newly developed micro pump driven by a conducting polymer soft actuator can transport fluids in one direction without backflow by the opening and closing of two soft actuators.

A Micro Pump Driven by Conducting Polymer Soft Actuator Based on Polypyrrole

2009 ◽  
Author(s):  
Yoshitaka Naka ◽  
Masaki Fuchiwaki ◽  
Kazuhiro Tanaka
Keyword(s):  
Energy Consumption ◽  
Conducting Polymer ◽  
Low Voltage ◽  
Flow Rates ◽  
Soft Actuator ◽  
Micro Pump ◽  
Consumption Rates ◽  
Basic Characteristics ◽  
Soft Actuators ◽  
Transport Fluid

Micro pumps with various driving systems have been developed and they have been carried out with experimental and numerical approaches so far. The authors propose a micro pump with soft actuators by conducting polymers as a driving source. The purpose of the present study is to develop the micro pump driven by conducting polymer soft actuator based on polypyrrole and to clarify the basic characteristics of the micro pump. Especially, we measure the flow rates, delivery heads and energy consumption of the micro pump driven by conducting polymer soft actuators and compare these results with those of the conventional micro pumps. The micro pump driven by a conducting polymer soft actuator can transport fluids in one direction without backflow by two soft actuators with opening and closing movement. Furthermore, wider ranges of flow rates are obtained with this micro pump and greater maximum delivery heads are obtained by them Moreover, the influence of the viscosity of the transport fluid was small and the micro pump driven by the conducting polymer soft actuator can transport fluid even with the viscosity that is 400 times as great as that of water in addition. The energy consumption rates of our micro pump are dramatically lower than those of the conventional micro pumps. This is because a conducting polymer soft actuator drives with a low voltage and a micro pump with low energy consumption is realized here.

Bimorph Type Soft Actuator Based on Conducting Polymer and Its Application to Micro Pump

2007 ◽  
Author(s):  
Masaki Fuchiwaki ◽  
Yoshitaka Naka ◽  
Kazuhiro Tanaka
Keyword(s):  
Conducting Polymer ◽  
Single Layer ◽  
Face To Face ◽  
Soft Actuator ◽  
Layer Structures ◽  
Micro Pump ◽  
Soft Actuators ◽  
Driving Source

Various shapes of conducting polymer soft actuators attract the attention in recent years. We have proposed a soft actuator that performs open-close movement and micro pump using soft actuator as a driving source. We have developed a soft actuator that perform open-close movement by arranging a soft actuator in which bimorph structures with anion-driven layers and cation-driven layers are connected and cation-driven layers arranged in face-to-face relation. Moreover, the soft actuator performs optimum open-close movement when the ratio of single layer structures and bimorph structures is 1:2. A planner soft actuator performs open-close movement when slits are set on a wide planner soft actuator. The authors have built up a micro-pump with a planner conducting polymer soft actuator that performs open-close movement as a driving source. Its oscillation volume can be adjusted in the range of 2.2–31 [μ1/min].

scholarly journals Control-Oriented Modelling of a 3D-Printed Soft Actuator

Materials ◽  
2018 ◽  
Vol 12 (1) ◽  
pp. 71 ◽  
Author(s):  
Ali Zolfagharian ◽  
Akif Kaynak ◽  
Sui Yang Khoo ◽  
Jun Zhang ◽  
Saeid Nahavandi ◽  
...  
Keyword(s):  
3D Printing ◽  
Dynamic Models ◽  
Three Dimensional ◽  
Input Voltage ◽  
Soft Actuator ◽  
Voltage Variation ◽  
Sophisticated Model ◽  
3D Printed ◽  
Rc Circuit ◽  
Soft Actuators

A new type of soft actuator was developed by using hydrogel materials and three-dimensional (3D) printing technology, attracting the attention of researchers in the soft robotics field. Due to parametric uncertainties of such actuators, which originate in both a custom design nature of 3D printing as well as time and voltage variant characteristics of polyelectrolyte actuators, a sophisticated model to estimate their behaviour is required. This paper presents a practical modeling approach for the deflection of a 3D printed soft actuator. The suggested model is composed of electrical and mechanical dynamic models while the earlier version describes the actuator as a resistive-capacitive (RC) circuit. The latter model relates the ionic charges to the bending of an actuator. The experimental results were acquired to estimate the transfer function parameters of the developed model incorporating Takagi-Sugeno (T-S) fuzzy sets. The proposed model was successful in estimating the end-point trajectory of the actuator, especially in response to a broad range of input voltage variation. With some modifications in the electromechanical aspects of the model, the proposed modelling method can be used with other 3D printed soft actuators.

scholarly journals An Origami Flexiball-Inspired Metamaterial Actuator and Its In-Pipe Robot Prototype

Actuators ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 67
Author(s):  
Fuwen Hu ◽  
Tian Li
Keyword(s):  
Degrees Of Freedom ◽  
Three Dimensional ◽  
Multiple Degrees Of Freedom ◽  
Soft Actuator ◽  
Structure Building ◽  
Magnetically Actuated ◽  
Mechanical Metamaterials ◽  
New Type ◽  
Soft Actuators ◽  
Magnetoactive Elastomer

Usually, polyhedra are viewed as the underlying constructive cells of packing or tilling in many disciplines, including crystallography, protein folding, viruses structure, building architecture, etc. Here, inspired by the flexible origami polyhedra (commonly called origami flexiballs), we initially probe into their intrinsic metamaterial properties and robotized methods from fabrication to actuation. Firstly, the topology, geometries and elastic energies of shape shifting are analyzed for the three kinds of origami flexiballs with extruded outward rhombic faces. Provably, they meet the definitions of reconfigurable and transformable metamaterials with switchable stiffness and multiple degrees of freedom. Secondly, a new type of soft actuator with rhombic deformations is successfully put forward, different from soft bionic deformations like elongating, contracting, bending, twisting, spiraling, etc. Further, we redesign and fabricate the three-dimensional (3D) printable structures of origami flexiballs considering their 3D printability and foldability, and magnetically actuated them through the attachment of magnetoactive elastomer. Lastly, a fully soft in-pipe robot prototype is presented using the origami flexiball as an applicable attempt. Experimental work clearly suggests that the presented origami flexiball robot has good adaptability to various pipe sizes, and also can be easily expanded to different scales, or reconfigured into more complex metastructures by assembly. In conclusion, this research provides a newly interesting and illuminating member for the emerging families of mechanical metamaterials, soft actuators and soft robots.

328 Micro Pump driven by Conducting Polymer Soft Actuator with Opening and Contracting Movement

2008 ◽  
Vol 2008.8 (0) ◽  
pp. 55-56
Author(s):  
Yoshitaka NAKA ◽  
Masaki FUCHIWAKI ◽  
Kazuhiro TANAKA
Keyword(s):  
Conducting Polymer ◽  
Soft Actuator ◽  
Micro Pump
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