Highly Sensitive Ionic Skin for Measuring Finger Joint Angles

doi:10.7652/xjtuxb202103019

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Highly Sensitive Ionic Skin for Measuring Finger Joint Angles

更新时间：2025-07-09

- Highly Sensitive Ionic Skin for Measuring Finger Joint Angles
- Vol. 55, Issue 3, Pages: 164-174(2021)
- 作者机构：
  
  西安建筑科技大学理学院,西安,710055
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb202103019
  CLC： O39;TP212.9
- Online First：10 March 2021，
  
  Published：2021
- 稿件说明：
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Highly Sensitive Ionic Skin for Measuring Finger Joint Angles[J]. 2021, 55(3): 164-174.
DOI：

Highly Sensitive Ionic Skin for Measuring Finger Joint Angles[J]. 2021, 55(3): 164-174. DOI： 10.7652/xjtuxb202103019.

摘要

为解决柔性传感器监测手指关节运动时灵敏度、测量范围及阈值有限的问题

设计并制备了一种多介电层(3层)结构形式的离子皮肤手指关节角度传感器。该传感器由多个硅橡胶薄膜和高保水性的离子凝胶电极构成

当穿戴传感器的手指关节弯曲时

根据应变引起其电容信号的变化

可测得手指关节弯曲角度。构建多介电层结构形式的离子皮肤应变传感理论模型; 推导多介电层离子皮肤手指关节角度传感器的角度传感理论模型; 测试传感器输出与手指关节角度关系。实验结果表明

传感器角度传感理论模型与测试结果吻合较好; 传感器灵敏度为单介电层离子皮肤手指关节角度传感器的3.5倍

测量范围囊括手指关节从展平到完全弯曲状态角度

阈值小于1°

具有灵敏度高、测量范围广和阈值低的特性。离子皮肤多介电层的结构形式及理论模型对康复训练患者及微操纵机械手的精准测量具有较好应用前景。

Abstract

A flexible capacitive sensor based on multi-layer(three-layer)dielectrics is proposed to measure finger joint angle with wide range and low threshold. The sensor consists of silicon rubber films and ionic conductors with excellent water retention. When a finger adherent the sensor is bent

the finger joint angle can be obtained from the change in capacitance induced by the strain. The strain sensing principle of the sensor is investigated with experiments and theory. The theoretical model to describe the relationship between input(finger joint angle)and output(change in capacitance)is proposed on the basis of the strain sensing principle. Then the quantitative relationship is verified by experiments

and the results are in a good agreement with the theoretical model. The results show that the sensitivity of the multi-layer sensor is 3.5 times higher than that of the single-layer sensor composed of a dielectric and two ionic conductors

and that this multi-layer sensor has the ability to measure the angles of the finger joint from straight to fully bended state with a resolution less than 1°. Therefore

this multi-layer sensor has the advantages of high sensitivity

wide measurement range and low threshold. It is beneficial to precise measurement of finger joint angles for the rehabilitation training patients and manipulator.

关键词

Keywords

references

LI Xiaodong, WEN Rongwei, SHEN Zhong, et al. A wearable detector for simultaneous finger joint motion measurement [J]. IEEE Transactions on Biomedical Circuits and Systems, 2018, 12(3): 644-654.

ZHOU Youlin, WU Yuanzhao, ASGHAR W, et al. Asymmetric structure based flexible strain sensor for simultaneous detection of various human joint motions [J]. ACS Applied Electronic Materials, 2019, 1(9): 1866-1872.

TAKESHI O, KOHEI K, MANABU O, et al. Measurement of finger joint angle using a flexible polymer sensor [J]. International Journal of Applied Electromagnetics and Mechanics, 2016, 52(3/4): 1-7.

王瑞, 李圣节, 李飞, 等. 运用四点法测量肘关节关节角度的效果探讨 [J]. 中华保健医学杂志, 2018, 20(4): 298-299.

WANG Rui, LI Shengjie, LI Fei, et al. The value of measuring the elbow joint rang of motion with four-point method [J]. Chinese Journal of Health Care and Medicine, 2018, 20(4): 298-299.

SUN Qijun, SEUNG W, KIM B J, et al. Active matrix electronic skin strain sensor based on piezopotential-powered graphene transistors [J]. Advanced Materials, 2015, 27(22): 3411-3417.

DENG Weili, YANG Tao, JIN Long, et al. Cowpea-structured PVDF/ZnO nanofibers based flexible self-powered piezoelectric bending motion sensor towards remote control of gestures [J]. Nano Energy, 2019, 55: 516-525.

张阳阳, 黄英, 刘家祥, 等. 面向手势动作捕捉的传感器设计及主从手运动映射 [J]. 机器人, 2019, 41(2): 156-164.

ZHANG Yangyang, HUANG Ying, LIU Jiaxiang, et al. Sensor design for hand gesture capturing and master-slave hand motion mapping [J]. Robot, 2019, 41(2): 156-164.

LU Shaowei, MA Junchi, MA Keming, et al. Highly sensitive graphene platelets and multi-walled carbon nanotube-based flexible strain sensor for monitoring human joint bending [J]. Applied Physics: A, 2019, 125(7): 471.

LI Hong, LI Huaibao, LOU Xiaoping, et al. Soft optical fiber curvature sensor for finger joint angle proprioception [J]. Optik International Journal for Light and Electron Optics, 2018, 179: 298-304.

韩艳杰. 基于3D打印与光纤光栅传感技术的新型人体姿态识别系统 [D]. 上海: 东华大学, 2018: 38-50.

SUN J Y, KEPLINGER C, WHITESIDES G M, et al. Ionic skin [J]. Advanced Materials, 2015, 26(45): 7608-7614.

LEI Zhouyue, WANG Quankang, SUN Shengtong, et al. A bioinspired mineral hydrogel as a self-healable, mechanically adaptable ionic skin for highly sensitive pressure sensing [J]. Advanced Materials, 2017, 29: 1-6.

高乐. 基于导电织物的柔性可拉伸传感器及手势识别研究 [D]. 合肥: 合肥工业大学, 2018: 11-32.

张阳阳, 黄英, 刘月, 等. 基于多传感器信息融合的人类抓握特征学习及物体识别 [J]. 机器人, 2020, 42(3): 267-277.

ZHANG Yangyang, HUANG Ying, LIU Yue, et al. Human grasp feature learning and object recognition based on multi-sensor information fusion [J]. Robot, 2020, 42(3): 267-277.

王晓峥. 柔性纤维状多孔导电复合材料制备及其敏感行为研究 [D]. 郑州: 郑州大学, 2019: 12-36.

PU Xianjie, GUO Hengyu, TANG Qian, et al. Rotation sensing and gesture control of a robot joint via triboelectric quantization sensor [J]. Nano Energy, 2018, 54: 453-460.

ZHANG Zhixing, WANG Ling, YU Huitao, et al. Highly transparent, self-healable, and adhesive organogels for bio-inspired intelligent ionic skins [J]. ACS Applied Materials and Interfaces, 2020, 12(13): 15657-15666.

JING Xin, LI Heng, MI Haoyang, et al. Highly transparent, stretchable, and rapid self-healing polyvinyl alcohol/cellulose nanofibril hydrogel sensors for sensitive pressure sensing and human motion detection [J]. Sensors and Actuators: B Chemical, 2019, 295: 159-167.

GUO Haoyu, SHI Lei, YANG Meng, et al. Highly stretchable and transparent dielectric gels for high sensitivity tactile sensors [J]. Smart Materials and Structures, 2018, 28(2): 1-19.

ZHANG Jiaqi, WAN Lijia, GAO Yang, et al. Highly stretchable and self-healable mxene/polyvinyl alcohol hydrogel electrode for wearable capacitive electronic skin [J]. Advanced Electronic Materials, 2019, 5(7): 1-10.

BAI Yuanyuan, CHEN Baohong, XIANG Feng, et al. Transparent hydrogel with enhanced water retention capacity by introducing highly hydratable salt [J]. Applied Physics Letters, 2014, 105(15): 1-6.

YANG Yang, ZHU Benpeng, YIN Di, et al. Flexible self-healing nanocomposites for recoverable motion sensor [J]. Nano Energy, 2015, 17: 1-9.

DHAKAR L, PITCHAPPA P, TAY F E H, et al. An intelligent skin based self-powered finger motion sensor integrated with triboelectric nanogenerator [J]. Nano Energy, 2016, 19: 532-540.

戴荣, 刘波峰. 传感器原理与工程应用 [M]. 北京: 电子工业出版社, 2013: 13-14.

LAFLAMME S, KOLLOSCHE M, CONNOR J J, et al. Soft capacitive sensor for structural health monitoring of large-scale systems [J]. Structural Control and Health Monitoring, 2012, 19(1): 70-81.

WANG Haiting, TONG Yanhong, ZHAO Xiaoli, et al. Flexible, high-sensitive, and wearable strain sensor based on organic crystal for human motion detection [J]. Organic Electronics, 2018, 61: 304-311.

LIAO Xinqin, LIAO Qingliang, YAN Xiaoqin, et al. Flexible and highly sensitive strain sensors fabricated by pencil drawn for wearable monitor [J]. Advanced Functional Materials, 2015, 25(16): 2395-2401.

CHENG Yin, WANG Ranran, SUN Jing. A stretchable and highly sensitive graphene-based fiber for sensing tensile strain, bending, and torsion [J]. Advanced Materials, 2016, 27(45): 7365-7371.

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