Design and fabrication of a displacement sensor using screen printing technology and piezoelectric nanofibers in D 33 mode

Yi Chen Chen, Chih Kun Cheng, Sheng Chih Shen

Research output: Contribution to journalArticle

Abstract

Polyvinylidene fluoride (PVDF) piezoelectric nanofibers were fabricated through near-field electrospinning (NFES) to develop a flexible piezoelectric element. Innovative screen printing technology was employed to produce bend-type electrodes designed with d 33 mode patterns. The electrodes and PVDF nanofibers were then attached to a polyimide film substrate. Compared with piezoelectric ceramics, piezoelectric fibers are inexpensive, flexible, and highly biocompatible. They also have a higher electron density than piezoelectric films, indicating that they are more efficient in electromechanical conversion. Thus, in this study, we adopted piezoelectric fibers to create a displacement sensor with bend-type electrodes that employed optimized pattern designs to increase the efficiency of piezoelectric conversion and sensitivity. The experimental results revealed that the type of electrode was critical for enhancing output voltage. The novel bend-type electrodes induced an average positive voltage of 960.5 mV during a tapping experiment, increasing the maximum voltage by 59.74% compared with a series-type electrode. The positioning accuracy of the displacement sensor was 600 μm; thus, the sensor could successfully determine positioning, confirming the feasibility of the displacement sensing mechanism.

Original languageEnglish
Pages (from-to)233-244
Number of pages12
JournalSensors and Materials
Volume31
Issue number1
DOIs
Publication statusPublished - 2019 Jan 1

Fingerprint

Screen printing
Nanofibers
printing
Fabrication
Electrodes
fabrication
electrodes
sensors
Sensors
vinylidene
positioning
fluorides
Electric potential
electric potential
fibers
Piezoelectric ceramics
Fibers
piezoelectric ceramics
Electrospinning
polyimides

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Materials Science(all)

Cite this

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abstract = "Polyvinylidene fluoride (PVDF) piezoelectric nanofibers were fabricated through near-field electrospinning (NFES) to develop a flexible piezoelectric element. Innovative screen printing technology was employed to produce bend-type electrodes designed with d 33 mode patterns. The electrodes and PVDF nanofibers were then attached to a polyimide film substrate. Compared with piezoelectric ceramics, piezoelectric fibers are inexpensive, flexible, and highly biocompatible. They also have a higher electron density than piezoelectric films, indicating that they are more efficient in electromechanical conversion. Thus, in this study, we adopted piezoelectric fibers to create a displacement sensor with bend-type electrodes that employed optimized pattern designs to increase the efficiency of piezoelectric conversion and sensitivity. The experimental results revealed that the type of electrode was critical for enhancing output voltage. The novel bend-type electrodes induced an average positive voltage of 960.5 mV during a tapping experiment, increasing the maximum voltage by 59.74{\%} compared with a series-type electrode. The positioning accuracy of the displacement sensor was 600 μm; thus, the sensor could successfully determine positioning, confirming the feasibility of the displacement sensing mechanism.",
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Design and fabrication of a displacement sensor using screen printing technology and piezoelectric nanofibers in D 33 mode . / Chen, Yi Chen; Cheng, Chih Kun; Shen, Sheng Chih.

In: Sensors and Materials, Vol. 31, No. 1, 01.01.2019, p. 233-244.

Research output: Contribution to journalArticle

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