Electromechanical modeling of eye fatigue detecting using flexible piezoelectric sensors

作     者：Chaofeng LU Shuang WU Yangyang ZHANG Yangkun DU 

作者机构：College of Civil Engineering and Architecture Zhejiang University Key Laboratory of Soft Machines and Smart Devices of Zhejiang ProvinceZhejiang University Soft Matter Research Center Zhejiang University Department of Engineering Mechanics Zhejiang University 

出 版 物：《Science China(Information Sciences)》 (中国科学:信息科学(英文版))

年 卷 期：2018年第61卷第6期

页      面：87-94页

核心收录：

学科分类：080202[工学-机械电子工程] 08[工学] 0802[工学-机械工程] 

基　　金：supported by National Natural Science Foundation of China(Grant Nos.11322216 11621062) 

主　　题：electromechanical model flexible piezoelectric sensors eye fatigue monitoring scaling law micromechanics 

摘      要：Eye fatigue has attracted significant interest due to its potential harm to human daily activities. An ultrathin flexible piezoelectric sensor was currently designed and fabricated to detect eye fatigue by deforming together with the eyelid epidermis. Herein we develop a theoretical model to illustrate the correlation between the eyelid motion and the signals output by the piezoelectric sensor. The theoretical predictions on the eyelid motion based on the measured electrical output agree well with the in vivo observations in experiment. A simple scaling law is established to evaluate the impacts of different parameters on the function ability of the flexible piezoelectric sensor. The results may provide useful guidelines for designing and optimizing similar devices for alike biological motions.