摘要
提出了一种可以同时检测压力与弯曲的双模态柔性触觉传感器。传感器由1个对弯曲不敏感的压力传感模块和1个对压力不敏感的弯曲传感模块构成,可以有效区分手部运动过程中产生的压力信号与弯曲信号。传感器的压力灵敏度和弯曲灵敏度分别为-0.31 N-1和0.136 rad-1,两种信号具有较低的串扰。将双模态传感器集成到橡胶手套的指关节处,采集实验人员做出不同手部动作时的信号输出作为特征值,选用决策树模型进行手部动作的识别训练,得到了99.8%的准确率,高于采用单一压力或弯曲传感模块信号训练的准确率,证明双模态触觉传感器相比单一模态的触觉传感器在柔性电子皮肤领域具有明显的优势。
A bimodal flexible tactile sensor which can detect pressure and bending at the same time is proposed.The sensor is composed of a pressure sensing module that is insensitive to bending and a bending sensing module that is insensitive to pressure,which can effectively distinguish the pressure signals generated during hand movements from the bending signals.The pressure sensitivity and bending sensitivity of the sensor are-0.31N-1 and 0.136 rad-1,respectively,and the crosstalk of the two signals is very small.Bimodal sensors are integrated into the knuckle of rubber glove to collect the signal outputs when the experimental personnel performing different hand movements as eigenvalue.The decision tree model is selected for hand movement recognition training,and the accuracy rate of 99.8%is achieved,which is higher than that of training with signals from a single pressure or bending sensing module.It is proved that the bimodal tactile sensor has obvious advantages over the single-modal tactile sensor in the field of flexible electronic skin.
作者
顾一丁
李世彬
GU Yiding;LI Shibin(School of Optoelectronic Science and Engineering,University of Electronic Science and Technology of China,Chengdu 611731,China)
出处
《传感器与微系统》
北大核心
2025年第5期44-47,共4页
Transducer and Microsystem Technologies
关键词
柔性传感器
压力传感
弯曲传感
手势识别
flexible sensor
pressure sensing
bending sensing
gesture recognition
