Noise-Reducing Fabric Electrode for ECG Measurement
In this work, we propose a fabric electrode with a special structure that can play the role of a noise reduction filter. Fabric electrodes made of the conductive fabric have been used for long-term ECG measurements because of their flexibility and non-invasiveness; however, due to the large impedanc...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-06-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/21/13/4305 |
| _version_ | 1797529008452141056 |
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| author | Takamasa Terada Masahiro Toyoura Takahide Sato Xiaoyang Mao |
| author_facet | Takamasa Terada Masahiro Toyoura Takahide Sato Xiaoyang Mao |
| author_sort | Takamasa Terada |
| collection | DOAJ |
| description | In this work, we propose a fabric electrode with a special structure that can play the role of a noise reduction filter. Fabric electrodes made of the conductive fabric have been used for long-term ECG measurements because of their flexibility and non-invasiveness; however, due to the large impedance between the skin and the fabric electrodes, noise is easily introduced into the ECG signal. In contrast to conventional work, in which chip-type passive elements are glued to the electrode to reduce noise, the proposed electrode can obtain a noise-reduced ECG by changing the structure of fabric. Specifically, the proposed electrode was folded multiple times to form a capacitor with a capacitance of about 3 nF. It is combined with the skin-electrode impedance to form a low-pass filter. In the experiment, we made a prototype of the electrodes and measured ECG at rest and during EMG-induced exercise. As a result, the SNR values at rest and during exercise were improved about 12.02 and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>10.29</mn></mrow></semantics></math></inline-formula> dB, respectively, compared with the fabric electrode without special structure. In conclusion, we have shown that changing the fabric electrode structure effectively removes noise in ECG measurement. |
| first_indexed | 2024-03-10T10:06:21Z |
| format | Article |
| id | doaj.art-379aec9a588c4e0ca0b25a4ecc4a9982 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T10:06:21Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-379aec9a588c4e0ca0b25a4ecc4a99822023-11-22T01:27:54ZengMDPI AGSensors1424-82202021-06-012113430510.3390/s21134305Noise-Reducing Fabric Electrode for ECG MeasurementTakamasa Terada0Masahiro Toyoura1Takahide Sato2Xiaoyang Mao3Department of Computer Science and Engineering, University of Yamanashi, Kofu, Yamanashi 400-8511, JapanDepartment of Computer Science and Engineering, University of Yamanashi, Kofu, Yamanashi 400-8511, JapanDepartment of Electrical and Electronic Engineering, University of Yamanashi, Kofu, Yamanashi 400-8511, JapanDepartment of Computer Science and Engineering, University of Yamanashi, Kofu, Yamanashi 400-8511, JapanIn this work, we propose a fabric electrode with a special structure that can play the role of a noise reduction filter. Fabric electrodes made of the conductive fabric have been used for long-term ECG measurements because of their flexibility and non-invasiveness; however, due to the large impedance between the skin and the fabric electrodes, noise is easily introduced into the ECG signal. In contrast to conventional work, in which chip-type passive elements are glued to the electrode to reduce noise, the proposed electrode can obtain a noise-reduced ECG by changing the structure of fabric. Specifically, the proposed electrode was folded multiple times to form a capacitor with a capacitance of about 3 nF. It is combined with the skin-electrode impedance to form a low-pass filter. In the experiment, we made a prototype of the electrodes and measured ECG at rest and during EMG-induced exercise. As a result, the SNR values at rest and during exercise were improved about 12.02 and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>10.29</mn></mrow></semantics></math></inline-formula> dB, respectively, compared with the fabric electrode without special structure. In conclusion, we have shown that changing the fabric electrode structure effectively removes noise in ECG measurement.https://www.mdpi.com/1424-8220/21/13/4305textileelectrocardiographydenoising |
| spellingShingle | Takamasa Terada Masahiro Toyoura Takahide Sato Xiaoyang Mao Noise-Reducing Fabric Electrode for ECG Measurement Sensors textile electrocardiography denoising |
| title | Noise-Reducing Fabric Electrode for ECG Measurement |
| title_full | Noise-Reducing Fabric Electrode for ECG Measurement |
| title_fullStr | Noise-Reducing Fabric Electrode for ECG Measurement |
| title_full_unstemmed | Noise-Reducing Fabric Electrode for ECG Measurement |
| title_short | Noise-Reducing Fabric Electrode for ECG Measurement |
| title_sort | noise reducing fabric electrode for ecg measurement |
| topic | textile electrocardiography denoising |
| url | https://www.mdpi.com/1424-8220/21/13/4305 |
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