Tactile sensing characteristics of electroactive polymer film based flexible devices

ZHANG Dong-zhi; TONG Jun; LIU Zhe; XIA Bo-kai

doi:10.3788/OPE.20142208.2151

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Tactile sensing characteristics of electroactive polymer film based flexible devices

更新时间：2020-08-13

- Tactile sensing characteristics of electroactive polymer film based flexible devices
- Optics and Precision Engineering Vol. 22, Issue 8, Pages: 2151-2158(2014)
- 作者机构：
  
  中国石油大学（华东）信息与控制工程学院,山东青岛,266580
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20142208.2151
  CLC： TB381;TP212.1
- Received：20 November 2013，
  
  Revised：17 January 2014，
  
  Published：25 August 2014
- 稿件说明：
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张冬至, 童俊, 刘哲等. 基于电活性聚合物薄膜柔性器件的触觉传感特性[J]. 光学精密工程, 2014,22(8): 2151-2158

ZHANG Dong-zhi, TONG Jun, LIU Zhe etc. Tactile sensing characteristics of electroactive polymer film based flexible devices[J]. Editorial Office of Optics and Precision Engineering, 2014,22(8): 2151-2158
张冬至, 童俊, 刘哲等. 基于电活性聚合物薄膜柔性器件的触觉传感特性[J]. 光学精密工程, 2014,22(8): 2151-2158 DOI： 10.3788/OPE.20142208.2151.

ZHANG Dong-zhi, TONG Jun, LIU Zhe etc. Tactile sensing characteristics of electroactive polymer film based flexible devices[J]. Editorial Office of Optics and Precision Engineering, 2014,22(8): 2151-2158 DOI： 10.3788/OPE.20142208.2151.

摘要

针对电活性聚合物（EAP）薄膜制造柔性智能器件的发展要求，分析了电活性聚合物薄膜的正/逆力-电特性及发电机理，采用静电诱导自组装技术在电活性聚合物表面制备了碳纳米管薄膜电极，然后构建了柔性传感器件。实验研究了EAP柔性器件的手指关节弯曲姿态及脚踏运动触觉的传感特性。扫描电子显微（SEM）形貌观察表明：碳纳米管薄膜呈网状结构且质地致密均匀。基于EAP柔性器件的手指弯曲姿态实验结果表明：在手指弯曲度为15~90°时，输出电压峰值为1.2~3.7 V，展示了输出电压峰值与手指弯曲度之间的高线性度，线性相关系数为0.9951。此外，采用EAP薄膜器件对踏步触觉进行了实验测试，其输出电压峰值在1 V左右，而且具有响应快、可重复性好等优势。本文的研究为电活性聚合物薄膜型电子皮肤及触觉传感器的发展提供了理论基础和实验依据。

Abstract

According to the development requirements of Electroactive Polymer (EAP)-based flexible and intelligent devices

the positive/inversive electro-mechanical properties of an EAP film and its electric power generation were proposed. A carbon nanotube-based flexible film electrode was fabricated on the EAP surface by using electrostatic-induced self-assembly technology

then a flexible sensing device was manufactured. The sensing characteristics for EAP under finger-bending gesture and a pedal touch test were investigated. The morphological observation by a scanning electron microscopy shows the carbon nanotube film to be high strength

dense and random network structures. The measurement of finger-bending gesture illustrates that the output voltage peak is in the range of 1.2-3.7 V under finger-bending angle of 15-90°

and also indicates the high linearity between output voltage peak and finger-bending angle with linear correlation coefficient of 0.9951. Furthermore

experimental result of EAP film device under the pedal touch shows that the output voltage peak is about 1 V with advantages of swift response and good repeatability. This work can provide the theoretic foundation and experimental supports for EAP-based electronic skin and tactile sensors.

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references

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