C27 Motion Control of a Biomimetic Actuator Using Electroconductive Polymer

Sugiyama, Kimikazu; Ishii, Kazuo; Kaneto, Keiichi

doi:10.1299/jsmemovic.2009.11.507

Cited by 3 publications

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“…Recently, there has been a lot of discussion on the usage and exploitation of many marine animals and resources. Underwater imaging has been used for a variety of scientific tasks and discoveries aside from photography and video recording, including underwater surveillance of artillery installations, the detection of underwater objects, the discovery of marine creatures, and the control of underwater vehicles (Sugiyama et al, 2009). The major distinction between underwater and surface vision is that the latter always experiences the effects of light absorption and diffusion.…”

Section: Introductionmentioning

confidence: 99%

Review of Underwater Image Enhancement Using CNN and U-net

Teli,

Shelke

2023

JoAII

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Due to environmental scattering, images taken in the underwater environment still exhibit color distortion, loss of resolution, and decreased contrast. The suggested study presents a method for enhancing the aesthetic appeal of underwater photography. Yet, because of unwanted staining, decreased contrast, and detail loss brought on by light scattering and absorption, photos that are directly taken in the marine environment are still highly damaged, drastically limiting the amount of information that can be extracted from the image. Thus, acquiring precise and clear photographs is a crucial requirement for aiding scientists in their understanding of the underwater environment. The CNN algorithms are employed in many different applications, including Identification of the object, tracking, recognition, and navigation. Separating the water component from the other component is the most important step here. To get rid of water from a color image, we're suggesting a practical technique.

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Section: Introductionmentioning

confidence: 99%

Review of Underwater Image Enhancement Using CNN and U-net

Teli,

Shelke

2023

JoAII

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“…Soft actuators have attracted considerable attention of researchers and engineers. Recently, research on electroactive polymer-based soft actuators has become widespread, and hydrogels [1,2], ionic polymermetal composites (IPMC) [3][4][5], and conducting polymers [6,7] are being intensively investigated. These polymers have unique characteristics that are useful for actuator use.…”

Section: Introductionmentioning

confidence: 99%

Large and symmetric deflection of Acryl plate-CFRP plate laminate actuator

Lin

Sasaki

Tamagawa

2013

JAE

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Unlike well-investigated polymer-based soft actuators such as gel, Ionic Polymer-Metal Composite, conducting polymer, a CFRP-based polymeric laminate possesses quite distinguished properties. It was previously reported that a CFRP-PVC laminate exhibited two-way deflection in accordance with environmental temperature, but it could not exhibit symmetric deflection because of its asymmetric structure. It must broaden the potential usefulness of the CFRP-based polymeric laminate as a soft actuator by achieving its symmetric deflection. In this study, we attempted to fabricate a new CFRP-based polymeric laminate which could exhibit symmetric deflection by electrical laminate temperature control. Despite such a successful outcome, still there was a room to improve the performance of the new CFRP-based polymeric laminate especially about the degree of its deflection. Its deflection was not so large for the actuator use. Hence, we further attempted to fabricate another CFRP-based polymeric laminate which could exhibit large and symmetric deflection under electrical control of laminate temperature. In fact, this another CFRP-based laminate exhibited symmetric deflection in accordance with temperature and the deflection was indeed enhanced.

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“…There is widespread ongoing research on electroactive polymer-based soft actuators, especially hydrogels [1,2], ionic polymer-metal composites (IPMC) [3,4], and conducting polymers [5,6] are being intensively investigated. These polymers have unique characteristics that are useful for actuator use.…”

Section: Introductionmentioning

confidence: 99%

Symmetric Deflection of CFRP-Based Polymeric Laminate

Lin

Sasaki

Tamagawa

2011

AEF

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Abstract. Unlike well-investigated polymer-based soft actuators such as gel, Ionic Polymer-Metal Composite, conducting polymer, a CFRP-based polymeric laminate possesses quite distinguished properties. It was previously reported that a CFRP-PVC laminate exhibited two-way deflection in accordance with environmental temperature, but it was asymmetric deflection due to the asymmetric laminate structure. In this study, we successfully fabricated a new CFRP-based polymeric laminate which can exhibit symmetric deflection. Despite such a successful outcome, there was large room to improve the degree of its deflection. Improvement of temperature control method for the newly fabricated CFRP-based polymeric laminate resulted in enhancement of the degree of its deflection. IntroductionThe study of soft actuators has attracted considerable attention of researchers and engineers. There is widespread ongoing research on electroactive polymer-based soft actuators, especially hydrogels [1,2], ionic polymer-metal composites (IPMC) [3,4], and conducting polymers [5,6] are being intensively investigated. These polymers have unique characteristics that are useful for actuator use. However, they also have undesirable charcteristics. For example, hydrogel shape change speed is considerably slow, IPMC hardly generates high force, and conducting polymers are typically electrically activated in a highly wet state. A practical soft actuator should exhibit rapid shape change and generate high force without the use of a liquid, which is not preferred because of the difficulty in handling a wet actuator.A CFRP-PVC laminate is a polymeric laminate that is fabricated by gluing a carbon fiber reinforced plastic (CFRP) plate to a polyvinylchloride (PVC) plate [7]. CFRP causes Joule heating by the application of voltage. Because of the disparity in the coefficients of thermal expansion between CFRP and PVC, the CFRP-PVC laminate exhibits deflection by imposing a voltage on the CFRP portion. The shape change is considerably rapid, and the CFRP-PVC laminate can generate an adequately high force. Moreover, the CFRP-PVC laminate is a solid-state material. Although the deflection of the CFRP-PVC laminate is thermally induced. Therefore, the CFRP-PVC laminate is regarded as an electroactive polymer. Although the CFRP-PVC laminate possesses useful characteristics as a soft actuator, it has some limitations. For instance, the CFRP-PVC laminate assumes a deflected shape in the PVC plate direction at room temperature and the Joule heat generated by the voltage application straightens the CFRP-PVC laminate. However, because of the asymmetric structure of CFRP-PVC laminate, the CFRP-PVC laminate hardly deflects in the CFRP plate direction. That is, the CFRP-PVC laminate exhibits asymmetric rather than symmetric deflection.In this study, we attempted to fabricate a polymeric laminate-type actuator that can exhibit symmetric deflection, and quantitatively evaluated its actuator performance.

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C27 Motion Control of a Biomimetic Actuator Using Electroconductive Polymer

Cited by 3 publications

References 0 publications

Review of Underwater Image Enhancement Using CNN and U-net

Review of Underwater Image Enhancement Using CNN and U-net

Large and symmetric deflection of Acryl plate-CFRP plate laminate actuator

Symmetric Deflection of CFRP-Based Polymeric Laminate

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