دورية أكاديمية
Ultra-high input impedance buffer for dry or capacitive electrodes: design and characterization for industry ; Buffer d’ultra alta impedància per a elèctrodes secs i capacitius: disseny i caracterització per la industria ; Buffer de ultra alta impedancia para electrodos secos y capacitivos: diseño y caracterización para la industria
| العنوان: | Ultra-high input impedance buffer for dry or capacitive electrodes: design and characterization for industry ; Buffer d’ultra alta impedància per a elèctrodes secs i capacitius: disseny i caracterització per la industria ; Buffer de ultra alta impedancia para electrodos secos y capacitivos: diseño y caracterización para la industria |
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| المؤلفون: | Camós Vidal, Robert, Rosell Ferrer, Francisco Javier |
| المساهمون: | Universitat Politècnica de Catalunya. Doctorat en Enginyeria Electrònica, Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica, Universitat Politècnica de Catalunya. IEB - Instrumentació Electrònica i Biomèdica |
| بيانات النشر: | Institute of Electrical and Electronics Engineers (IEEE) |
| سنة النشر: | 2023 |
| المجموعة: | Universitat Politècnica de Catalunya, BarcelonaTech: UPCommons - Global access to UPC knowledge |
| مصطلحات موضوعية: | Àrees temàtiques de la UPC::Enginyeria elèctrica::Maquinària i aparells elèctrics, Electric resistors, Electrodes, Biomedical monitoring, Capacitive electrodes, Dry electrodes, Electrocardiogram (ECG), ESD protections, Non-contact, Ultra-high input impedance, Resistències elèctriques, Elèctrodes |
| الوصف: | © 2023 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes,creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. ; A large number of health and wellness applications wish to monitor electrocardiogram signal (ECG) in the least intrusive way possible. The use of dry textile electrodes with high input impedance bio-amplifiers is a common technique. This paper presents a novel ultra-high input impedance buffer to obtain a reduced input capacitance and enhance the acquisition of results for dry or non-contact capacitive ECG electrodes. Based on different bootstrapping techniques, input stage biasing and unipolar power supply, an operational amplifier buffer is implemented on Printed Circuit Board (PCB) to provide a low cost solution. The solution considers the protections for electrostatic discharges (ESD) and filters for interferences, maintaining high input impedance design. A method to measure input impedances in the range of femtofarads is also proposed. This active electrode prototype presents a 191 fF input capacitance at 50 Hz. Different skin-electrode impedance cases are studied to obtain the Common Mode Rejection Ratio (CMRR). As a result, a value of 81.4 dB is obtained with zero mismatch and 76.1 dB at 50 Hz is obtained with a resistive mismatch of 1-2.2 M¿. Moreover, ECG test is evaluated using a discrete back-end circuit, digital filtering and software display. Finally, the full ECG circuit has been simulated under an ESD transient of ±8 kV IEC 61000-4-2 waveform. This paper demonstrated that the proposed solution with standard discrete components fulfills the industry requirements for robust ultra-high impedance ECG sensor. ; Peer Reviewed ; Postprint (published version) |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | 8 p.; application/pdf |
| اللغة: | English |
| تدمد: | 2169-3536 |
| العلاقة: | https://ieeexplore.ieee.org/document/10172188Test; Camos, R.; Rosell, F. Ultra-high input impedance buffer for dry or capacitive electrodes: design and characterization for industry. "IEEE access", 4 Juliol 2023, vol. 11, p. 68316-68323.; http://hdl.handle.net/2117/393651Test |
| DOI: | 10.1109/ACCESS.2023.3292304 |
| الإتاحة: | https://doi.org/10.1109/ACCESS.2023.3292304Test http://hdl.handle.net/2117/393651Test |
| حقوق: | Attribution-NonCommercial-NoDerivs 4.0 International ; https://creativecommons.org/licenses/by-nc-nd/4.0Test/ ; Open Access |
| رقم الانضمام: | edsbas.C58E84B0 |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 21693536 |
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| DOI: | 10.1109/ACCESS.2023.3292304 |