Low-hysteresis and low-interference soft tactile sensor using a conductive coated porous elastomer and a structure for interference reduction

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dc.contributor.authorPark, Kyungseoko
dc.contributor.authorKim, Seunghwanko
dc.contributor.authorLee, Hyosangko
dc.contributor.authorPark, Inkyuko
dc.contributor.authorKim, Jungko
dc.date.accessioned2019-07-08T09:10:13Z-
dc.date.available2019-07-08T09:10:13Z-
dc.date.created2019-07-08-
dc.date.created2019-07-08-
dc.date.issued2019-08-
dc.identifier.citationSENSORS AND ACTUATORS A-PHYSICAL, v.295, pp.541 - 550-
dc.identifier.issn0924-4247-
dc.identifier.urihttp://hdl.handle.net/10203/263155-
dc.description.abstractThe need for soft whole-body tactile sensors is emerging. Piezoresistive materials are advantageous in terms of making large tactile sensors, but the hysteresis of piezoresistive materials is a major drawback. The hysteresis of a piezoresistive material should be attenuated to make a practical piezoresistive soft tactile sensor. In this paper, we introduce a low-hysteresis and low-interference soft tactile sensor using a conductive coated porous elastomer and a structure to reduce interference (grooves). The developed sensor exhibits low hysteresis because the transduction mechanism of the sensor is dominated by the contact between the conductive coated surface. In a cyclic loading experiment with different loading frequencies, the mechanical and piezoresistive hysteresis values of the sensor are less than 21.7% and 6.8%, respectively. The initial resistance change is found to be within 4% after the first loading cycle. To reduce the interference among the sensing points, we also propose a structure where the grooves are inserted between the adjacent electrodes. This structure is implemented during the molding process, which is adopted to extend the porous tactile sensor to large-scale and facile fabrication. The effects of the structure are investigated with respect to the normalized design parameters θ-
dc.languageEnglish-
dc.publisherELSEVIER SCIENCE SA-
dc.titleLow-hysteresis and low-interference soft tactile sensor using a conductive coated porous elastomer and a structure for interference reduction-
dc.typeArticle-
dc.identifier.wosid000483635900060-
dc.identifier.scopusid2-s2.0-85067900986-
dc.type.rimsART-
dc.citation.volume295-
dc.citation.beginningpage541-
dc.citation.endingpage550-
dc.citation.publicationnameSENSORS AND ACTUATORS A-PHYSICAL-
dc.identifier.doi10.1016/j.sna.2019.06.026-
dc.contributor.localauthorPark, Inkyu-
dc.contributor.localauthorKim, Jung-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorSoft tactile sensor-
dc.subject.keywordAuthorHysteresis-
dc.subject.keywordAuthorInterference reduction structure-
dc.subject.keywordAuthorConductive coated porous elastomer-
dc.subject.keywordPlusELECTRICAL-IMPEDANCE TOMOGRAPHY-
dc.subject.keywordPlusSKIN-
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