STUDY ON THE DEVELOPMENT AND APPLIED TECHNOLOGY OF PVDF SMART SENSOR

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  • JU Dianshu
    Graduate School of Engineering, Kyoto University
  • SUZUKI Yoshiyuki
    Disaster Prevention Research Institute, Kyoto University
  • OU Jinping
    School of Civil Engineering and Engineering Mechanics, Dalian University of Technology

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  • PVDFスマートセンサーの開発と応用技術に関する研究

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Abstract

To perform structural health monitoring over a long period, intelligent sensors with high durability and superior sensing ability are needed. In this paper, the suitability of PVDF strain sensors, developed by utilizing highly durable PVDF films, for structural health monitoring is discussed. The results of this study show that PVDF strain sensors are adaptive to dynamic monitoring of civil engineering structures because of the superior and stable sensitivity over 0.5-10 Hz, high linearity, easy fabrication and installation. Furthermore, PVDF sensors can catch instantaneous signals of crack initiation and propagation. The signals on crack caught gotten from PVDF are useful for structural safety evaluation and damage location, which are the key problems in structural health monitoring.

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