The soft liquid metal-based pressure sensor based on resistance-capacitance coupling
With the rapid development of the intelligent technology, flexible sensors have widely applied in wearable electronic products, human-computer interaction, soft robots, health care and other emerging fields. At present, mechanical sensors are based on resistance or capacitance changes alone to achie...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-06-01
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| Series: | Medicine in Novel Technology and Devices |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590093525000141 |
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| author | Kang Sun Xinxin Zhang Shuting Liang Liangtao Li Caicai Jiao Qian Wang Wuliang Chen Liang Hu Yubo Fan |
| author_facet | Kang Sun Xinxin Zhang Shuting Liang Liangtao Li Caicai Jiao Qian Wang Wuliang Chen Liang Hu Yubo Fan |
| author_sort | Kang Sun |
| collection | DOAJ |
| description | With the rapid development of the intelligent technology, flexible sensors have widely applied in wearable electronic products, human-computer interaction, soft robots, health care and other emerging fields. At present, mechanical sensors are based on resistance or capacitance changes alone to achieve a perceived response to force. Meanwhile the methods of flexible mechanical sensors to improve the sensitivity are mainly micro-structuring of the electrode or dielectric layer, which is a complicated process and less probing of the electrode shape. Therefore, this paper proposes a flexible sensor based liquid metal to measure mechanics through resistive-capacitive coupling. Through testing, we obtained the optimal preparation scheme. We also explored the mechanical properties of the sensor design with different combinations of liquid metal electrode shapes using simulation, and then tested the mechanical properties of the double helix liquid metal sensor prepared according to the model structure. With resistive-capacitive coupling, the sensor can achieve a sensitivity of 0.4653 kPa−1 with a response range of 10∼343 Pa, and it has good tensile and compressive response, and cyclic stability. This study provides a new structural design direction for the subsequent application of liquid metal in flexible sensing with high sensitivity. |
| format | Article |
| id | doaj-art-fe80f93cab384d80898f47e6d1acba87 |
| institution | OA Journals |
| issn | 2590-0935 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Medicine in Novel Technology and Devices |
| spelling | doaj-art-fe80f93cab384d80898f47e6d1acba872025-08-20T02:31:08ZengElsevierMedicine in Novel Technology and Devices2590-09352025-06-012610036310.1016/j.medntd.2025.100363The soft liquid metal-based pressure sensor based on resistance-capacitance couplingKang Sun0Xinxin Zhang1Shuting Liang2Liangtao Li3Caicai Jiao4Qian Wang5Wuliang Chen6Liang Hu7Yubo Fan8Key Laboratory of Biomechanics and Mechanobiology (Beihang University), Ministry of Education Beijing Advanced Innovation Center for Biomedical Engineering School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, ChinaKey Laboratory of Biomechanics and Mechanobiology (Beihang University), Ministry of Education Beijing Advanced Innovation Center for Biomedical Engineering School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, ChinaCollege of Chemical and Environmental Engineering, Chongqing Key Laboratory of Environmental Materials & Remediation Technologies, Chongqing University of Arts and Sciences, Chongqing, 402160, ChinaKey Laboratory of Biomechanics and Mechanobiology (Beihang University), Ministry of Education Beijing Advanced Innovation Center for Biomedical Engineering School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, ChinaKey Laboratory of Biomechanics and Mechanobiology (Beihang University), Ministry of Education Beijing Advanced Innovation Center for Biomedical Engineering School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, ChinaKey Laboratory of Biomechanics and Mechanobiology (Beihang University), Ministry of Education Beijing Advanced Innovation Center for Biomedical Engineering School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, ChinaKey Laboratory of Biomechanics and Mechanobiology (Beihang University), Ministry of Education Beijing Advanced Innovation Center for Biomedical Engineering School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, ChinaKey Laboratory of Biomechanics and Mechanobiology (Beihang University), Ministry of Education Beijing Advanced Innovation Center for Biomedical Engineering School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, China; Corresponding author.Key Laboratory of Biomechanics and Mechanobiology (Beihang University), Ministry of Education Beijing Advanced Innovation Center for Biomedical Engineering School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, China; Corresponding author.With the rapid development of the intelligent technology, flexible sensors have widely applied in wearable electronic products, human-computer interaction, soft robots, health care and other emerging fields. At present, mechanical sensors are based on resistance or capacitance changes alone to achieve a perceived response to force. Meanwhile the methods of flexible mechanical sensors to improve the sensitivity are mainly micro-structuring of the electrode or dielectric layer, which is a complicated process and less probing of the electrode shape. Therefore, this paper proposes a flexible sensor based liquid metal to measure mechanics through resistive-capacitive coupling. Through testing, we obtained the optimal preparation scheme. We also explored the mechanical properties of the sensor design with different combinations of liquid metal electrode shapes using simulation, and then tested the mechanical properties of the double helix liquid metal sensor prepared according to the model structure. With resistive-capacitive coupling, the sensor can achieve a sensitivity of 0.4653 kPa−1 with a response range of 10∼343 Pa, and it has good tensile and compressive response, and cyclic stability. This study provides a new structural design direction for the subsequent application of liquid metal in flexible sensing with high sensitivity.http://www.sciencedirect.com/science/article/pii/S2590093525000141Liquid metalMechanical sensorsResistive-capacitive couplingDirect-write printingSimulation analysis |
| spellingShingle | Kang Sun Xinxin Zhang Shuting Liang Liangtao Li Caicai Jiao Qian Wang Wuliang Chen Liang Hu Yubo Fan The soft liquid metal-based pressure sensor based on resistance-capacitance coupling Medicine in Novel Technology and Devices Liquid metal Mechanical sensors Resistive-capacitive coupling Direct-write printing Simulation analysis |
| title | The soft liquid metal-based pressure sensor based on resistance-capacitance coupling |
| title_full | The soft liquid metal-based pressure sensor based on resistance-capacitance coupling |
| title_fullStr | The soft liquid metal-based pressure sensor based on resistance-capacitance coupling |
| title_full_unstemmed | The soft liquid metal-based pressure sensor based on resistance-capacitance coupling |
| title_short | The soft liquid metal-based pressure sensor based on resistance-capacitance coupling |
| title_sort | soft liquid metal based pressure sensor based on resistance capacitance coupling |
| topic | Liquid metal Mechanical sensors Resistive-capacitive coupling Direct-write printing Simulation analysis |
| url | http://www.sciencedirect.com/science/article/pii/S2590093525000141 |
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