Characterization of conducting-polymer-based bimorph vibration sensors

Authors

Weihua Li, University of WollongongFollow
Geoffrey M. Spinks, University of WollongongFollow
Lianbin Zhao, University of Wollongong
Yanzhe Wu, University of WollongongFollow
Dezhi Zhou, University of Wollongong
G G. Wallace, University of WollongongFollow

RIS ID

12485

Publication Details

Li, W., Spinks, G. Maxwell., Zhao, L., Wu, Y., Zhou, D. Wallace, G. G. (2005). Characterization of conducting-polymer-based bimorph vibration sensors. In A. Wilson (Eds.), Proceedings of SPIE - The International Society for Optical Engineering Smart Materials III (pp. 301-308). Australia: The Society for Optical Engineering.

Abstract

This paper presents theoretical and experimental investigation of mechanical-electrical properties of conducting polymers based bimorph sensors. A material parameter, h_CP , is proposed to represent linear relationship between induction charge and the applied external deformation. Based on this assumption, a constitutive equation for bimorph sensors under steady-state external loadings are constructed and then solved. Mechanical-electrical properties of bimorph sensors are experimentally studied using both vibration-amplitude sweep mode and frequency sweep mode. The material parameter h_CP , is identified by comparing theoretical analysis and experimental results. The applications of conducting polymers based bimorph sensors in smart structures are also discussed.