用于龙舟训练的仿生柔性触觉传感器

Bionic Flexible Tactile Sensor for Dragon Boat Training

为了提高龙舟比赛运动员的训练效果,开发了可用于身体运动识别及压力监测的仿生纤毛柔性触觉传感器。柔性触觉传感器采用了经典的基底-传感层-封装层式“三明治”结构,柔性硅胶基底采用旋涂法制备,传感层为利用Langmuir⁃Blodgett方法得到的大面积碳纳米管传感薄膜,纤毛栽种于传感层,最后封装得到具有仿生纤毛的触觉传感器。由传感器的SEM照片可知,层与层之间的结合特性较好,采用自制的往复测试平台,对传感器进行了测试。传感器耐用性最高可达5500次,最大阻值差可达300%,对于不同方向力的刺激有识别特性,可清晰识别人体的脉搏信号,对未来龙舟训练智能装备开发中的动作识别、力量监测等功能具有较大现实意义。

In order to improve the training effect of dragon boat racing athletes,flexible tactile sensors with biomimetic cilia were developed for body movement recognition and pressure monitoring.The tactile sensor applied the classic‘sandwich’structure of substrate⁃sensing layer⁃encapsulation layer.The silicone substrate was prepared by spin⁃coating method,and a large⁃area pre⁃assembled carbon nanotube sensing film was obtained by the Langmuir⁃Blodgett method,and then the cilia were planted on the‘sandwich’structure to obtain the tactile sensor with biomimetic cilia.The SEM photos of the sensor exhibited good bonding characteristics between layers.The sensor was tested by a homemade reciprocating test platform,the durability of the sensor could be as high as 5500 times.It had obvious recognition characteristics for forces in 0°and 180°directions;and it clearly recognised the pulse signals of the human body,which were of great practical significance for the future development of intelligent equipment for dragon boat training,such as movement recognition and strength monitoring.