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

In English

Författare

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.

Avdelning/ar

Publiceringsår

2016-07-01

Språk

Engelska

Sidor

403-412

Publikation/Tidskrift/Serie

Structural Health Monitoring

Volym

15

Issue

4

Dokumenttyp

Artikel i tidskrift

Förlag

SAGE Publications

Ämne

  • Other Electrical Engineering, Electronic Engineering, Information Engineering

Status

Published

Projekt

  • Continuous monitoring of large structures

ISBN/ISSN/Övrigt

  • ISSN: 1475-9217