Design and Experimental Evaluation of Piezoelectric Fibers Sensor using 3D Near-Field Electrospinning Technology

  • 吳 松恒

Student thesis: Master's Thesis


The purpose of present study is using near-field electrospinning (NFES) combined with polymer material polyvinylidene difluoride (PVDF) and designing the novel technology to fabricate 3D stacking piezoelectric fibers (3DSPF) Through the mathematical module of NFES the study derives the formula of predicting fibers width and velocity of jet Besides analyze the relation between process parameters and fibers width completely and conclude the effect of each parameter After that design a process to fabricate 3DSPF with paper substrate and observe the result of 3DSPF by SEM The result of SEM holds that paper substrate and prediction of fibers width can make process successfully The study designs the experiments and diverse sensor to verify the piezoelectricity of 3DSPF The result of experiments shows that the voltage of sensor is proportional to stacking layer and voltage of 7 layers stacking fibers is higher than normal fibers 116 % and the voltage of fibers is inversely proportional to electrodes gap Finally the study shows the application to produce the flexible sensor combined with paper substrate copper electrodes 3DSPF and tendency of voltage to measure the physiological data of human Making use of data acquisition (DAQ) and human machine interface (HMI) to design a system that can monitor users’ physiological signal effectively
Date of Award2018 Aug 16
Original languageEnglish
SupervisorSheng-Chih Shen (Supervisor)

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