Design and testing of a hybrid-mode PVDF displacement sensor for low-frequency infrastructure monitoring

George M. Lloyd; Ying Zhang; P. Fabo; Ming L. Wang; L. Wang

doi:10.1117/12.434155

30 July 2001 Design and testing of a hybrid-mode PVDF displacement sensor for low-frequency infrastructure monitoring

George M. Lloyd, Ying Zhang, P. Fabo, Ming L. Wang, L. Wang

Proceedings Volume 4330, Smart Structures and Materials 2001: Smart Systems for Bridges, Structures, and Highways; (2001) https://doi.org/10.1117/12.434155
Event: SPIE's 8th Annual International Symposium on Smart Structures and Materials, 2001, Newport Beach, CA, United States

Abstract

Polyvinylidene fluoride (PVDF) is a semicrystalline polymer exhibiting piezoelectric and pyroelectric properties which has been used for sensing infrared energy and the measurement of high frequency stress and strain, such as shocks. Despite the low material cost, durability, high sensitivity, and fast response, PVDF-based sensors have not been successfully used for infrastructure monitoring, where these benefits would seem appropriate. One reason is that the low frequency response of the sensor and integrated charge amplifier (the hybrid characteristic of the sensor) has not been adequately measured and modeled. In this paper we report on the development of a PVDF displacement sensor designed for infrastructure monitoring.

Citation Download Citation

George M. Lloyd, Ying Zhang, P. Fabo, Ming L. Wang, and L. Wang "Design and testing of a hybrid-mode PVDF displacement sensor for low-frequency infrastructure monitoring", Proc. SPIE 4330, Smart Structures and Materials 2001: Smart Systems for Bridges, Structures, and Highways, (30 July 2001); https://doi.org/10.1117/12.434155

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