Wearable capacitive pressure sensor using interdigitated capacitor printed on fabric
Abstract This paper presented a systematic approach to electro-textile pressure sensors dependent on interdigitated capacitors (IDCs) printed on fabric. In this study, we proposed a highly sensitive, broad-range pressure sensor based on the combination of porous Ecoflex, carbon nanotubes (CNTs), and...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2022-12-01
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| Series: | Fashion and Textiles |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s40691-022-00320-w |
| _version_ | 1828087254441000960 |
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| author | TranThuyNga Truong Ji-Seon Kim Eunji Yeun Jooyong Kim |
| author_facet | TranThuyNga Truong Ji-Seon Kim Eunji Yeun Jooyong Kim |
| author_sort | TranThuyNga Truong |
| collection | DOAJ |
| description | Abstract This paper presented a systematic approach to electro-textile pressure sensors dependent on interdigitated capacitors (IDCs) printed on fabric. In this study, we proposed a highly sensitive, broad-range pressure sensor based on the combination of porous Ecoflex, carbon nanotubes (CNTs), and interdigitated electrodes. Firstly, characterizations of the interdigitated capacitor using silver ink on Cotton and Polyester fabric were completed by precision LCR meter across the frequency range from 1 to 300 kHz. The effect of the fabric on the performance of sensor sensitivity was included. Secondly, estimating and optimizing the volume fraction of CNTs and air gaps on the properties of composites are included. The presence of volume fraction CNTs enhanced the bond strength of composites and improved sensor deformability. The robustness of the presented sensor was demonstrated by testing under high pressure at 400 kPa for more than 20,000 cycles. Thirdly, the combination of CNTs and porous dielectric achieved a broad detection range (400 kPa) with a sensitivity range from 0.035 (at 400 kPa) to 0.15 $${\mathrm{KPa}}^{-1}$$ KPa - 1 (at 50 kPa). Finally, the Cotton and Polyester substrate comparison demonstrates that selecting a suitable dielectric substrate affects sensor sensitivity and signal output. |
| first_indexed | 2024-04-11T05:09:30Z |
| format | Article |
| id | doaj.art-4027896453ab45c0823562784a8e01ff |
| institution | Directory Open Access Journal |
| issn | 2198-0802 |
| language | English |
| last_indexed | 2024-04-11T05:09:30Z |
| publishDate | 2022-12-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Fashion and Textiles |
| spelling | doaj.art-4027896453ab45c0823562784a8e01ff2022-12-25T12:05:46ZengSpringerOpenFashion and Textiles2198-08022022-12-019111410.1186/s40691-022-00320-wWearable capacitive pressure sensor using interdigitated capacitor printed on fabricTranThuyNga Truong0Ji-Seon Kim1Eunji Yeun2Jooyong Kim3Department of Smart Wearables Engineering, Soongsil UniversityDepartment of Smart Wearables Engineering, Soongsil UniversityDepartment of Smart Wearables Engineering, Soongsil UniversityDepartment of Organic Materials and Fiber Engineering, Soongsil UniversityAbstract This paper presented a systematic approach to electro-textile pressure sensors dependent on interdigitated capacitors (IDCs) printed on fabric. In this study, we proposed a highly sensitive, broad-range pressure sensor based on the combination of porous Ecoflex, carbon nanotubes (CNTs), and interdigitated electrodes. Firstly, characterizations of the interdigitated capacitor using silver ink on Cotton and Polyester fabric were completed by precision LCR meter across the frequency range from 1 to 300 kHz. The effect of the fabric on the performance of sensor sensitivity was included. Secondly, estimating and optimizing the volume fraction of CNTs and air gaps on the properties of composites are included. The presence of volume fraction CNTs enhanced the bond strength of composites and improved sensor deformability. The robustness of the presented sensor was demonstrated by testing under high pressure at 400 kPa for more than 20,000 cycles. Thirdly, the combination of CNTs and porous dielectric achieved a broad detection range (400 kPa) with a sensitivity range from 0.035 (at 400 kPa) to 0.15 $${\mathrm{KPa}}^{-1}$$ KPa - 1 (at 50 kPa). Finally, the Cotton and Polyester substrate comparison demonstrates that selecting a suitable dielectric substrate affects sensor sensitivity and signal output.https://doi.org/10.1186/s40691-022-00320-wCapacitive pressure sensorElectro-textileWearable sensorWearable electronics Fabric sensor |
| spellingShingle | TranThuyNga Truong Ji-Seon Kim Eunji Yeun Jooyong Kim Wearable capacitive pressure sensor using interdigitated capacitor printed on fabric Fashion and Textiles Capacitive pressure sensor Electro-textile Wearable sensor Wearable electronics Fabric sensor |
| title | Wearable capacitive pressure sensor using interdigitated capacitor printed on fabric |
| title_full | Wearable capacitive pressure sensor using interdigitated capacitor printed on fabric |
| title_fullStr | Wearable capacitive pressure sensor using interdigitated capacitor printed on fabric |
| title_full_unstemmed | Wearable capacitive pressure sensor using interdigitated capacitor printed on fabric |
| title_short | Wearable capacitive pressure sensor using interdigitated capacitor printed on fabric |
| title_sort | wearable capacitive pressure sensor using interdigitated capacitor printed on fabric |
| topic | Capacitive pressure sensor Electro-textile Wearable sensor Wearable electronics Fabric sensor |
| url | https://doi.org/10.1186/s40691-022-00320-w |
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