Embedding ultrasonic transducers in concrete: A lifelong monitoring technology
| Autor: | Arnaud Deraemaeker, Cédric Dumoulin |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Computer science
Acoustics Essais non destructifs 0211 other engineering and technologies Audio time-scale/pitch modification 020101 civil engineering 02 engineering and technology Building and Construction Ultrasonic wave Embedded piezoelectric transducer Direct wave interferometry (DWI) Concrete assessment In situ monitoring Piezoelectricity Stabilité des constructions [construction génie civil] 0201 civil engineering Term (time) Time of flight Interferometry Transducer 021105 building & construction General Materials Science Ultrasonic sensor Reliability (statistics) Civil and Structural Engineering |
| Zdroj: | Construction & building materials, 194 |
| Popis: | This paper deals with lifelong monitoring of concrete structures using embedded piezoelectric transducers. Thanks to such transducers, monitoring of the concrete can be automated both at the early age, right after the concrete is cast, and over the long term, until the end of the lifetime of the structure. For long term monitoring, the wave velocity variations introduced by operational factors effects should be filtered out. In the present study, we introduce a new technique called the Direct Wave Interferometry (DWI) which uses time stretching only on the early part of the recorded wave. This appears to be a good tradeoff between the high resolution of the Coda Wave Interferometry (CWI) for low velocity variations and the reliability of the measurement of the time of flight (TOF) for large velocity variations. SCOPUS: ar.j info:eu-repo/semantics/published |
| Databáze: | OpenAIRE |
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