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Proceedings Paper

Design and testing of a hybrid-mode PVDF displacement sensor for low-frequency infrastructure monitoring
Author(s): George M. Lloyd; Ying Zhang; P. Fabo; Ming L. Wang; L. Wang
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Paper 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.

Paper Details

Date Published: 30 July 2001
PDF: 10 pages
Proc. SPIE 4330, Smart Structures and Materials 2001: Smart Systems for Bridges, Structures, and Highways, (30 July 2001); doi: 10.1117/12.434155
Show Author Affiliations
George M. Lloyd, Univ. of Illinois/Chicago (United States)
Ying Zhang, Univ. of Illinois/Chicago (United States)
P. Fabo, Comenius Univ. (Slovak Republic)
Ming L. Wang, Univ. of Illinois/Chicago (United States)
L. Wang, InfraTech Inc. (United States)


Published in SPIE Proceedings Vol. 4330:
Smart Structures and Materials 2001: Smart Systems for Bridges, Structures, and Highways
S.-C. Liu, Editor(s)

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