Recent Progress on Soft Transducers for Sensor Networks

Chiba, Seiki; Waki, Mikio; Fujita, Koji; Song, Zheqiang; Ohyama, Kazuhiro; Zhu, Shijie

doi:10.1007/978-981-13-1196-3_23

Cited by 9 publications

(8 citation statements)

References 23 publications

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“…In 2011, the authors of this paper, in collaboration with the Japan Agency for Marine-Earth Science and Technology (JAMSTEC), examined a DEA that can be driven even on a 100,00 m deep seabed [30,31]. Using a pressure chamber that could reproduce the pressure of the seabed of 10,000 m, a roll-type DEA was manufactured by rolling a sheet-type DE using an acrylic material, and when an experiment was conducted, it was able to be sufficiently driven even under a pressure of 10,000 m. We believe that the DE sensor can be sufficiently driven as a sensor even under a pressure of 10,000 m if an elastomer with sufficient thickness is used and a cushion material with an appropriate thickness is selected.…”

Section: Discussion Of Experimental Resultsmentioning

confidence: 99%

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Perspective Chapter: Dielectric Elastomer Sensor Capable of Measuring Large Deformation and Pressure

Chiba¹,

Waki²

2023

Human-Robot Interaction - Perspectives and Applications

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Most of the conventional sensors used for measuring deformation, pressure, etc., use metal, ceramics, piezo, or the like. Many of them are very rigid, and when the object is deformed or when the pressure on the object changes currently, it is necessary to arrange a large number of sensors with different conditions side by side. However, it is still difficult to measure all changes over time. With the newly developed dielectric elastomer sensor, even a very thin (0.1–0.2 mm) elastomer thickness could be deformed in difficult environments (e.g., places with large temperature changes or large vibrations), and it would be possible to measure any pressure changes due to its deformation. By applying this sensor, it can be used as a position sensor (including a three-dimensional sensor) or an acceleration sensor, so that it could be applied to the control of the arms and legs of a robot, smart shoes, and the like.

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Section: Discussion Of Experimental Resultsmentioning

confidence: 99%

“…In 2012, we created a system to check how much a finger bends by attaching a DE sensor with a carbon black electrode on a non-distorted acrylic film to a rubber glove. (See Figure 23) [31][32][33].…”

Section: Discussion Of Experimental Resultsmentioning

confidence: 99%

Perspective Chapter: Dielectric Elastomer Sensor Capable of Measuring Large Deformation and Pressure

Chiba¹,

Waki²

2023

Human-Robot Interaction - Perspectives and Applications

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“…In 2012, the authors developed a system for the rehabilitation of patients who could not move their fingers due to conditions such as cerebral infarction by setting a DES capable of measuring the stretch of the patients' fingers and measuring how much they can move their fingers [62]. However, the DES at that time was not able to obtain sufficient elongation, which made it difficult to measure.…”

Section: Discussionmentioning

confidence: 99%

Dielectric Elastomer Multi-Sensors and Tactile Actuators for Robot Fingers in Human-Robot Interaction

Chiba¹,

Waki²

2023

Preprint

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Conventional sensors used to measure properties such as deformation or pressure, etc. often make use of metals, ceramics, piezos, and other materials. Many of those materials are very hard, so if they are used as sensors, when the object is deformed, or when the pressure on the object changes from time to time, it is necessary to prepare a variety of sensors with different properties. In this experiment, a dielectric elastomer (DE) pressure sensor was fabricated using a hydrogenated nitrile rubber (HNBR) film with improved hardness and elongation. With this, even very thin film (0.2mm) can be measured at any pressure between 1gf and 20kgf. Previously developed film was harder and less stretchy than the current one, with a pressure detection width from 4 kgf to 120 kgf. This time, however, the pressure sensitivity of the finger has been made more sensitive, making it possible to measure even smaller values. A DE stretch sensor was also developed using single-walled carbon nanotube (SWCNT) electrodes with larger stretchability and flexibility, utilizing this HNBR. This greatly improved the mechanical flexibility and stretchability of the DES. Using this stretch sensor, it became possible to sense the motion of the robot's fingers, and to sense the force (pressure) when the fingertip touched the target object with the DE pressure sensor. In addition, it was confirmed that the sensation of the robot's finger touching an object can be fed back to a human finger by using a small diaphragm type vibrator DE actuator.

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“…A conceptual diagram of various power generation systems using DEGs Figure 9 summarizes the sites where the DEG can be installed and shows each conceptual diagram of the generation systems [40]. They are a) wind power generators on the roofs of buildings, b) water mill generators, c) waste energy generators, d) drain generators, e) road power generation system using a DE sheet, f) wind power generators, g) solar heat generators, h) wave generators near the shore, i) water flow generators, j) e)…”

Section: Figurementioning

confidence: 99%

The Possibility of a High-efficiency Wave Power Generation System using Dielectric Elastomers

Chiba¹,

Waki²,

Jiang³

et al. 2021

Preprint

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Power generation using dielectric elastomer (DE) artificial muscle is attracting attention because of its light weight, low cost, and high efficiency. Since this method is a system that produces electricity without emitting carbon dioxide nor using rare earths, it would contribute to the goal of environmental sustainability. In this paper, the background of DEs, the associated high-efficient wave energy generation (WEG) systems that we developed using DEs, as well as the latest development of its material are summarized. By covering the challenges we face and the achievements that we’ve reached, we can discuss the opportunities to build the foundation of a recycled energy society through the usage of these WEGs. On the other hand, to make these possibilities commercially successful, the advantages of DEs need to be integrated with traditional technologies. To achieve this, we also consider the method of using DEs alone and a system used in combination with an oscillating water column. Finally, the current status and future of DEGs are discussed.

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Recent Progress on Soft Transducers for Sensor Networks

Cited by 9 publications

References 23 publications

Perspective Chapter: Dielectric Elastomer Sensor Capable of Measuring Large Deformation and Pressure

Perspective Chapter: Dielectric Elastomer Sensor Capable of Measuring Large Deformation and Pressure

Dielectric Elastomer Multi-Sensors and Tactile Actuators for Robot Fingers in Human-Robot Interaction

The Possibility of a High-efficiency Wave Power Generation System using Dielectric Elastomers

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