Rodyti trumpą aprašą

dc.contributor.authorSitiajev, Nikita Edgar
dc.contributor.authorTrečiokaitė, Vaiva
dc.contributor.authorŠutinys, Ernestas
dc.date.accessioned2023-09-18T20:42:47Z
dc.date.available2023-09-18T20:42:47Z
dc.date.issued2021
dc.identifier.urihttps://etalpykla.vilniustech.lt/handle/123456789/151861
dc.description.abstractThe progress observed in 'soft robotics' brought some promising research in flexible tactile, pressure and force sensors, which can be based on polymeric composite materials. Therefore, in this paper, we intend to evaluate the characteristics of a force-sensitive material – polyethene-carbon composite (Velostat®) by implementing this material into the design of the flexible tactile sensor [1]. Velostat® is a composite polymer material consisting of carbon-impregnated polyethene. Entrapped carbon powder turns initially dielectric polyethene into electrically conducting composite material which belongs to the group of piezoresistive materials. Simply speaking by applying force or pressure on this material, its resistance is changed. The main problem is an insufficiency of research of Velostat®, in order to successfully predict its reaction to particular mechanical irritation and therefore implement it as a reliable sensor in a mechatronic system. During the research, the velostat® film was placed between two conductive copper electrodes which allowed to measure the resistance of the material in respect of time and evaluate sensors' dynamic response. Dynamic load acting on the sensor's upper surface was created using a motor carrying an eccentric load (Fig. 1.). By changing the mass and adjusting the loading fixture offset from motor shaft different magnitude mechanical loads were exerted. The loading frequency was controlled by the stepper motor's varying rotation speed. From the Fig. 1 you can observe a velostat® film (1) being place between two conductive strips (2), to connect it to measuring device, placed between a lower (3) and upper (4) plates to hold it in place. The upper plate is represented transparent, in order to show the interconnection between the elements. The upper plate is firmly connected to the motor (5), which is going to create an eccentric load for force-sensitive material. On the shaft of the motor a pulley (6) with slots is mounted, in order to allow attachment and adjustment of different weights making testing device more versatile also an accelerometer (7) is joined with the upper plate to monitor the magnitude of excited force and create a closedloop system. When the experiment is carried out, data is obtained and saved on the memory device. Correlation between frequency and amplitude of applied dynamic load and change in resistance of velostat® defines how precisely sensor can react to varying load. Obtained data allows defining the sensor's main dynamic characteristics such as response time and bandwidth. After result evaluation, precise velostat® reaction is established, promoting the further implementation of forcesensitive material into "soft robotics" applications.eng
dc.format.extentp. 258
dc.format.mediumtekstas / txt
dc.language.isoeng
dc.rightsLaisvai prieinamas internete
dc.source.urihttp://www.openreadings.eu/thesismanager/thesis21/377Sitiajev.pdf
dc.source.urihttp://www.openreadings.eu/programme/
dc.source.urihttps://talpykla.elaba.lt/elaba-fedora/objects/elaba:87535754/datastreams/MAIN/content
dc.subjectJ900 - Technologijos / Technologies
dc.titleExperimental research of force/pressure sensor static and dynamic accuracy and repeatability
dc.typeKitos konferencijų pranešimų santraukos / Other conference presentation abstracts
dcterms.references0
dc.type.pubtypeT3 - Kitos konferencijos pranešimo tezės / Other conference presentation abstracts
dc.contributor.institutionVilniaus Gedimino technikos universitetas
dc.contributor.facultyMechanikos fakultetas / Faculty of Mechanics
dc.subject.researchfieldT 009 - Mechanikos inžinerija / Mechanical enginering
dc.subject.studydirectionE10 - Gamybos inžinerija / Production and manufacturing engineering
dc.subject.vgtuprioritizedfieldsMC03 - Išmaniosios įterptinės sistemos / Smart embedded systems
dc.subject.ltspecializationsL104 - Nauji gamybos procesai, medžiagos ir technologijos / New production processes, materials and technologies
dc.subject.enVelostat
dc.subject.enpressure sensor
dc.subject.enexperimental research
dcterms.sourcetitleOpen Readings 2021: 64th international conference for students of physics and natural sciences, March 16-19, 2021
dc.publisher.nameVilniaus universitetas
dc.publisher.cityVilnius
dc.identifier.elaba87535754


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