软体机器人是近年来的研究热点,涉及信号检测、控制、致动等多个方面。基于弹性体材料设计制备了一种符合人体手指运动规律的弯曲致动器及其仿生手和电容式可拉伸传感器。仿生手总共设计有14个弯曲关节,且每个弯曲关节都由外部管道独立...软体机器人是近年来的研究热点,涉及信号检测、控制、致动等多个方面。基于弹性体材料设计制备了一种符合人体手指运动规律的弯曲致动器及其仿生手和电容式可拉伸传感器。仿生手总共设计有14个弯曲关节,且每个弯曲关节都由外部管道独立控制,当外部气压达到50 k Pa时,手指关节能够实现90o的弯曲变形,最大指尖压力为210m N。可拉伸应变传感器在200%应变下表现出良好的稳定性和可逆性,将传感器贴在手指关节上具有监测手指运动的功能。最后,将传感器贴于手套上作为可穿戴器件,通过单片机控制系统采集手套上传感器由于手指弯曲产生的信号,信号经蓝牙传输,实现对气动回路的有效控制,最终完成对仿生手的远程实时操控。研究结果可应用于远程交互、生命科学等领域。展开更多
Wearable and stretchable physical sensors that can conformally contact on the surface of organs or skin provide a new opportunity for human-activity monitoring and personal healthcare. Particularly, various attempts h...Wearable and stretchable physical sensors that can conformally contact on the surface of organs or skin provide a new opportunity for human-activity monitoring and personal healthcare. Particularly, various attempts have been made in exploiting wearable and conformal sensors for ther- mal characterization of human skin. In this respect, skin- mounted thermochromic films show great capabilities in body temperature sensing. Thermochromic temperature sensors are attractive because of their easy signal analysis and optical recording, such as color transition and fluorescence emission change upon thermal stimuli. Here, desirable mechanical properties that match epidermis are obtained by physical crosslinking of polydiacetylene （PDA） and transparent elas- tomeric polydimethylsiloxane （PDMS） networks. The result- ing PDA fdm displayed thermochromic and thermo- fluorescent transition temperature in the range of 25-85℃, with stretchability up to 300% and a skin-like Young＇s mod- ulus of -230 kPa. This easy signal-handling provides excellent references for further design of convenient noninvasive sen- sing systems.展开更多
文摘软体机器人是近年来的研究热点,涉及信号检测、控制、致动等多个方面。基于弹性体材料设计制备了一种符合人体手指运动规律的弯曲致动器及其仿生手和电容式可拉伸传感器。仿生手总共设计有14个弯曲关节,且每个弯曲关节都由外部管道独立控制,当外部气压达到50 k Pa时,手指关节能够实现90o的弯曲变形,最大指尖压力为210m N。可拉伸应变传感器在200%应变下表现出良好的稳定性和可逆性,将传感器贴在手指关节上具有监测手指运动的功能。最后,将传感器贴于手套上作为可穿戴器件,通过单片机控制系统采集手套上传感器由于手指弯曲产生的信号,信号经蓝牙传输,实现对气动回路的有效控制,最终完成对仿生手的远程实时操控。研究结果可应用于远程交互、生命科学等领域。
基金supported by the National Key Research and Development Program of China (2016YFB0700300)the National Natural Science Foundation of China (51503014 and51501008)the State Key Laboratory for Advanced Metals and Materials (2016Z-03)
文摘Wearable and stretchable physical sensors that can conformally contact on the surface of organs or skin provide a new opportunity for human-activity monitoring and personal healthcare. Particularly, various attempts have been made in exploiting wearable and conformal sensors for ther- mal characterization of human skin. In this respect, skin- mounted thermochromic films show great capabilities in body temperature sensing. Thermochromic temperature sensors are attractive because of their easy signal analysis and optical recording, such as color transition and fluorescence emission change upon thermal stimuli. Here, desirable mechanical properties that match epidermis are obtained by physical crosslinking of polydiacetylene （PDA） and transparent elas- tomeric polydimethylsiloxane （PDMS） networks. The result- ing PDA fdm displayed thermochromic and thermo- fluorescent transition temperature in the range of 25-85℃, with stretchability up to 300% and a skin-like Young＇s mod- ulus of -230 kPa. This easy signal-handling provides excellent references for further design of convenient noninvasive sen- sing systems.
