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Continuous wave measurements in a network of transducers for structural health monitoring of a large concrete floor slab

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Author

Summary, in English

Local, superficial damage was detected and localized on an 8 × 2-m concrete floor slab using a structural health monitoring system. A total of 30 piezoelectric transducers, placed in a grid, transmitted and received continuous ultrasonic waves that were measured using a lock-in amplifier. Tomography was used to create images from the measured amplitude and phase of the continuous waves between all possible transducer pairs. The location of damage induced by impact hits was visible in the resulting images. The signals could easily be detected even between the most distant transducer pairs, indicating the possibility of monitoring even very large concrete structures.

Publishing year

2016-07-01

Language

English

Pages

403-412

Publication/Series

Structural Health Monitoring

Volume

15

Issue

4

Document type

Journal article

Publisher

SAGE Publications

Topic

  • Other Electrical Engineering, Electronic Engineering, Information Engineering

Status

Published

Project

  • Continuous monitoring of large structures

ISBN/ISSN/Other

  • ISSN: 1475-9217