Journal
CONSTRUCTION AND BUILDING MATERIALS
Volume 131, Issue -, Pages 57-65Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2016.11.050
Keywords
Piezoelectric sensor; Aggregate-shape; Embedded; Infrastructure; Health monitoring
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Funding
- National High Technology Research and Development Program of China [2014AA110402]
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In this paper, a new type of aggregate-shape embedded piezoelectric sensor for health monitoring of civil infrastructures was developed. The sensor was designed by using piezoelectric ceramic chip as the functional phase, and a new composite material as packaging phase. 3D printing technology was also used for packaging system design and sensor fabrication. The frequency independence, linearity, sensitivity, response rate, and service performance of the sensor were tested by frequency scanning and amplitude scanning. Experimental results show that within the vibration frequency range of common civil engineering structures, the new aggregate-shape embedded piezoelectric sensor has good mechanical and workability properties. Test results also show that the new embedded sensors have very good mechanical electrical coupling performance, which builds a solid foundation for further application in the civil engineering infrastructures. (C) 2016 Elsevier Ltd. All rights reserved.
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