Design and Analysis of Electrical characteristic of Non-contact Capacitive Electrode for ECG Application

Design and Analysis of Electrical characteristic of Non-contact Capacitive Electrode for ECG Application | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article Design and Analysis of Electrical characteristic of Non-contact Capacitive Electrode for ECG Application Ramya Lakshmi V S, N R Raajan This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4653838/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract Purpose: Capacitive-based sensors have become prominent in physiological sig- nal measurement over the past decade. The electrical characteristics of the capacitive electrode depend on various parameters. Methods: In this work, we proposed a Capacitive Electrode (CE) with optimal Shielding and Guarding design (SGD). The gold was coated over the copper on the base material FR4 is used for electrode material. Three different designs were proposed. The performance of each design was evaluated using the Finite Element Method (FEM). Results: On comparing all the electrophysical parameters of the three designs, the design: ”The shielding was designed in such a way that it conversed with the electrode, and the guarding was formed as a concentric around the sensing plate” shows optimal SGD, which enables higher performance. The proposed electrode was applied for the ECG application. The optimal electrodes (OE) were placed in the lead I and V1 V2 lead positions. The experimental results conducted by Finite Element Method (FEM) show that the lead I position is the optimal lead position for ECG measurement. The developed Capacitive electrodes were tested to fetch the ECG signal. When comparing the proposed electrode with the traditional 12-lead ECG system and the AD8232 sensor, the SNR value shows better signal quality for the proposed electrode. Conclusion: This research mainly concentrates on the electrical characteristics of the capacitive electrodes with optimal shielding and guarding design. The proposed capacitive electrode can also used to fetch other bio-signals. Physical sciences/Engineering/Biomedical engineering Physical sciences/Engineering/Electrical and electronic engineering Capacitance electrocardiogram Electrode Electrostatic Potential Gold coated copper Optimal lead position Signal Strength. Full Text Additional Declarations "Statement of ethical approval: This study followed ethical guidelines and received approval from the Thanjavur Medical College, Thanjavur. Informed consent was obtained from all participants, who were provided comprehensive information about the study’s purpose, procedures, and potential risks. Participant data were anonymized and securely stored by SASTRA Deemed University data protection policies. Participation was voluntary, with the option to withdraw at any time. Participants were debriefed following the study and compensated appropriately for their time, as approved by the ethics committee. The authors declare no conflicts of interest related to this study. Data supporting the findings are available from the corresponding author at reasonable request, according to ethical guidelines." There is NO Competing Interest. Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-4653838","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":320486945,"identity":"7101b090-d907-4084-b8b4-e440a058d3e3","order_by":0,"name":"Ramya Lakshmi V S","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAABFklEQVRIiWNgGAWjYBADHgZmKIOfvQFIGVgQr0VGsucASIsE8dbZGNxIANG4tZi3n06T+PHnnow5O4/hxx81d3gkZz6/uuFHgQQDf3t3AjYtMmdyt0n2thXzWDbzGEvzHHvGwy+dU3azB+gwiTNnN2DTIsGQu02CtyGBx+AwW4I0A9thHsnZOWk3eIBaDCRysWvhf7tN8s8fsJbknz/+HeYxuHkm7eYffFokcrdJ87CBtDAfk+BtA2q5wX7sNl5bJN5utpZtg2ix5u0DOqwnh+22jIEED06/8OduvPnmT4K9wfmDzTd/fDtsz89+/BlQxEaOv70XqxYgYEGPAh4DMIlDOQgwf0ATYH+AR/UoGAWjYBSMQAAAvPZfZyhc7QwAAAAASUVORK5CYII=","orcid":"","institution":"SASTRA Deemed University","correspondingAuthor":true,"prefix":"","firstName":"Ramya","middleName":"Lakshmi V","lastName":"S","suffix":""},{"id":320486946,"identity":"56657f65-1b82-4004-923f-f51e1c3c427a","order_by":1,"name":"N R Raajan","email":"","orcid":"","institution":"SASTRA Deemed University","correspondingAuthor":false,"prefix":"","firstName":"N","middleName":"R","lastName":"Raajan","suffix":""}],"badges":[],"createdAt":"2024-06-28 09:56:02","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-4653838/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-4653838/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":62570668,"identity":"c1bab43a-d355-444a-9b4f-34c019640fa9","added_by":"auto","created_at":"2024-08-16 03:12:11","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":2087978,"visible":true,"origin":"","legend":"","description":"","filename":"ElectrodecharacterizationManuscript.pdf","url":"https://assets-eu.researchsquare.com/files/rs-4653838/v1_covered_2b78ada0-63d6-4916-bf78-b1627f960733.pdf"}],"financialInterests":"\u003cp\u003e\"Statement of ethical approval: This study followed ethical guidelines and received approval from the Thanjavur Medical College, Thanjavur. 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