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MoS_(2) nanoflowers and PEDOT:PSS nanocomposite enabling wearable dual-mode pressure sensors

Science China(Technological Sciences) 2024年第6期67卷 1737-1747页

作者： WANG FengMing YANG WeiJia MA Ke SHEN GengZhe su daojian LI BaiJun WANG ShuangPeng QIN BoLong ZHANG Chi XIN Yue CAO XiaoBing HE Xin School of Applied Physics and Materials Wuyi UniversityJiangmen529020China Biomaterials R&D Center Zhuhai Institute of Advanced TechnologyChinese Academy of SciencesZhuhai519003China Joint Key Laboratory of the Ministry of Education Institute of Applied Physics and Materials EngineeringUniversity of MacaoMacao999078China

A versatile sensing platform employing inorganic MoS_(2) nanoflowers and organic poly(3,4-ethylene dioxythiophene):poly(styrene sulfonate)(PEDOT:PSS)has been investigated to develop the resistive and capacitive force-sensitive *** microstructure of the sensing layer heightens the sensitivity and response time of the dual-mode pressure sensors by augmenting electron pathways and inner stress in response to mechanical ***,the capacitive and resistive sensors exhibit sensitivities of 0.37 and 0.12 kPa^(-1),respectively,while demonstrating a remarkable response time of approximately 100 ***,it is noteworthy that the PEDOT:PSS layer exhibits excellent adhesion to polydimethylsiloxane(PDMS)substrates,which contributes to the development of highly robust force-sensitive sensors capable of enduring more than 10000loading/unloading *** combination of MoS_(2)/PEDOT:PSS layers in these dual-mode sensors has shown promising results in detecting human joint movements and subtle physiological ***,the sensors have achieved a remarkable precision rate of 98%in identifying target *** outcomes underscore the significant potential of these sensors for integration into applications such as electronic skin and human-machine interaction.

关键词： MoS_(2)/PEDOT:PSS nanocomposite force-sensitive sensor multi-scaled microstructure physiological signals monitoring object grasping recognition

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Highly stable capacitive tactile sensors with tunable sensitivity facilitated by electrostatic interaction of layered double hydroxide,MXene,and Ag NWs

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Science China(Technological Sciences) 2023年第11期66卷 3287-3297页

作者： SHEN GengZhe HUANG WeiQing LI HaiFeng WANG FengMing su daojian LI BaiJun ZHANG BoLun LIANG Ping ZHANG Chi XIN Yue HE Xin School of Applied Physics and Materials Wuyi UniversityJiangmen 529020China School of Materials and Energy Guangdong University of TechnologyGuangzhou 510006China

A capacitive tactile sensor(CTS)has been developed by assembling a double-sided patterned dielectric layer and novel *** patterned aluminium foil-supported electrode comprises zinc-aluminium layered double hydroxides(Zn AlLDH),MXene,and Ag NWs via electrostatic *** flexible device enables greater structural deformation,thereby enhancing sensitivity to a wide range of *** sensitivity of the CTS can be customized to meet specific requirements by matching the microstructured electrodes with the patterned dielectric *** optimized sensor exhibits a sensitivity of 2.752 kPa^(–1)within 30 kPa,a response time of approximately 100 ms,and a wide detection range of 0–300 *** strong physical interaction among the electrode materials ensures a reliable conductive network,ensuring the long-term stability of the sensor,even after 7500 loading and unloading ***,the fabricated CTS device presents a promising prospect for the integration into wearable electronics,with the ability to effectively respond to both human activities and external physical stimuli.

关键词： capacitive tactile sensor adjustable sensitivity long-term durability human activity monitoring

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Carbonization fabrication of a piezoresistive sensor with improved sensitivity via Ni decoration of carbonized cotton fibers

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Science China(Technological Sciences) 2022年第12期65卷 3000-3009页

作者： HE Xiang WANG FengMing LIANG YiYing WU JiaWei LIANG JiongHong SHEN GengZhe LI BaiJun su daojian ZHANG Chi SONG WeiDong HE Xin School of Applied Physics and Materials Wuyi UniversityJiangmen 529020China School of Materials and Energy Guangdong University of TechnologyGuangzhou 510006China

The development of wearable electronics urgently requires the cost-effective and scalable fabrication of high-performance pressure *** work aims to develop a simple carbonization strategy to facilitate sensor sensitivity by decorating discrete nickel nanoparticles on carbonized cotton fibers(CCFs).The increased air gap between the fibers at the unloading state,as well as the enlargement of the deformation distance and the contact area between the conductive materials at the loading state,contribute to a more significant resistance ***,the sensitivity of the piezoresistive sensor is improved more than 5 times within 1 N by introducing Ni nanoparticles,and it is characterized by a rapid response(~160 ms)and recovery(~100 ms),wide detection range(~20 N/~130 kPa),and good durability(~4000 cycles).The flexible sensor has been successfully demonstrated to monitor human movements,physical stimuli,and pressure ***,the proposed device can control temperature accurately as a uniform and large-scale *** work reveals that the Ni@CCFs-based sensor is prospective in wearable electronics,artificial intelligence,health monitoring,medical diagnosis and treatment.

关键词： carbonized cotton fabric Ni nanoparticles flexible piezoresistive sensor wearable device

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基于FreeRTOS嵌入式系统的AGV开发

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机械设计与研究 2022年第5期38卷 35-41页

作者：陈瑞曾庆桥杨嘉玺熊道建李世成苏立民一汽-大众动力总成事业部成都发动机厂成都610100

自动导航车(Automated Guided Vehicle,简称AGV)设备作为无人自动化生产的重要一环,具有自动化程度高、适应性好、柔性程度高、可靠性好等优点。介绍了基于FreeRTOS嵌入式系统自主开发的AGV设备硬件电路和软件程序,相比于其他设计方案,... 详细信息

自动导航车(Automated Guided Vehicle,简称AGV)设备作为无人自动化生产的重要一环,具有自动化程度高、适应性好、柔性程度高、可靠性好等优点。介绍了基于FreeRTOS嵌入式系统自主开发的AGV设备硬件电路和软件程序,相比于其他设计方案,具有功能齐全、扩展方便、配置灵活、成本低廉等优点。

关键词： AGV FreeRTOS嵌入式程序 CAN通信算法

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