Development of an automated contactless ultrasonic scanning measurement system for wavefield imaging of concrete elements

Homin Song, John S. Popovics, Jongwoong Park

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents development of an automated contactless ultrasonic scanning measurement system for ultrasonic wavefield imaging of concrete elements. The system uses an air-coupled ultrasonic transducer for sending and a multi-channel MEMS ultrasonic air-coupled sensor array for sensing and thus enables rapid acquisition of ultrasonic wavefield data. The system requires neither physical contact between the sensors and test specimens nor special surface treatment of the concrete. In the paper, the design of the MEMS ultrasonic sensor array and an interfacial circuit are described. The MEMS sensor array with the interfacial circuit are then integrated into an automated scanner, and a series of ultrasonic scanning measurements are performed on a laboratory-scale concrete sample. The ultrasonic wavefield data obtained from the scanning measurement tests are visually represented. The experimental results show that the MEMS sensor array and interfacial circuit enable acquisition of leaky ultrasonic wave signals from the concrete sample with high SNR and high spatial resolution can be achieved in the obtained ultrasonic wavefield images.

Original languageEnglish (US)
Title of host publication2017 IEEE International Ultrasonics Symposium, IUS 2017
PublisherIEEE Computer Society
ISBN (Electronic)9781538633830
DOIs
StatePublished - Oct 31 2017
Event2017 IEEE International Ultrasonics Symposium, IUS 2017 - Washington, United States
Duration: Sep 6 2017Sep 9 2017

Publication series

NameIEEE International Ultrasonics Symposium, IUS
ISSN (Print)1948-5719
ISSN (Electronic)1948-5727

Other

Other2017 IEEE International Ultrasonics Symposium, IUS 2017
CountryUnited States
CityWashington
Period9/6/179/9/17

Keywords

  • Automated scanning measurements
  • Concrete
  • Distributed cracks
  • MEMS ultrasonic sensor array
  • Wavefield imaging

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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  • Cite this

    Song, H., Popovics, J. S., & Park, J. (2017). Development of an automated contactless ultrasonic scanning measurement system for wavefield imaging of concrete elements. In 2017 IEEE International Ultrasonics Symposium, IUS 2017 [8091904] (IEEE International Ultrasonics Symposium, IUS). IEEE Computer Society. https://doi.org/10.1109/ULTSYM.2017.8091904