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Robust hydrogel sensors for unsupervised learning enabled sign-to-verbal translation

文献类型： 外文期刊

作者： Ma, Hude 1 ; Qin, Haiyang 1 ; Xiao, Xiao 5 ; Liu, Na 1 ; Wang, Shaolei 5 ; Li, Junye 6 ; Shen, Sophia 5 ; Dai, Shuqi 1 ; Sun, Mengmeng 1 ; Li, Peiyi 1 ; Pan, Xiaofang 6 ; Huang, Mingjun 7 ; Lu, Baoyang 2 ; Chen, Jun 5 ; Wu, Lidong 1 ;

作者机构： 1.Chinese Acad Fishery Sci, Fisheries Engn Inst, Beijing, Peoples R China

2.Chinese Acad Fishery Sci, Beijing, Peoples R China

3.Jiangxi Sci & Technol Normal Univ, Flexible Elect Innovat Inst, Jiangxi Key Lab Flexible Elect, Nanchang, Peoples R China

4.Shanghai Ocean Univ, Coll Food Sci & Technol, Shanghai, Peoples R China

5.Univ Calif Los Angeles, Dept Bioengn, Los Angeles, CA USA

6.Shenzhen Univ, Coll Elect & Informat Engn, Shenzhen, Peoples R China

7.South China Univ Technol, South China Adv Inst Soft Matter Sci & Technol, Sch Mol Sci & Engn, Guangzhou, Peoples R China

8.Sungkyunkwan Univ, SKKU Inst Energy Sci & Technol, Suwon, South Korea

9.Univ Calif Los Angeles, Dept Bioengn, Los Angeles, CA 90095 USA

10.Chinese Acad Fishery Sci, Fisheries Engn Inst, Beijing 100141, Peoples R China

关键词： hydrogel; liquid metal; sign-to-verbal translation; strain sensor; unsupervised learning

期刊名称：INFOMAT （ 影响因子：22.7； 五年影响因子：22.7 ）

ISSN：

年卷期： 2023 年 5 卷 7 期

页码：

收录情况： SCI

摘要： Highly stretchable and robust strain sensors are rapidly emerging as promising candidates for a diverse of wearable electronics. The main challenge for the practical application of wearable electronics is the energy consumption and device aging. Energy consumption mainly depends on the conductivity of the sensor, and it is a key factor in determining device aging. Here, we design a liquid metal (LM)-embedded hydrogel as a sensing material to overcome the barrier of energy consumption and device aging of wearable electronics. The sensing material simultaneously exhibits high conductivity (up to 22 S m(-1)), low elastic modulus (23 kPa), and ultrahigh stretchability (1500%) with excellent robustness (consistent performance against 12 000 mechanical cycling). A motion monitoring system is composed of intrinsically soft LM-embedded hydrogel as sensing material, a microcontroller, signal-processing circuits, Bluetooth transceiver, and self-organizing map developed software for the visualization of multi-dimensional data. This system integrating multiple functions including signal conditioning, processing, and wireless transmission achieves monitor hand gesture as well as sign-to-verbal translation. This approach provides an ideal strategy for deaf-mute communicating with normal people and broadens the application of wearable electronics.

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