Non-Destructive Inspection of Concrete Structures by Ultrasonic Sensor Based on A Frequency Analysis

Shogo Tanaka; Tomoyuki Wakunaga

doi:10.11499/sicep.2002.0.466.0

SICE Annual Conference 2002

DOI https://doi.org/10.11499/sicep.2002.0.466.0

Conference information

Host: The Society of Instrument and Control Engineers

Co-host: IEEE/Industiral Electronic Society, IEEE/Robotics and Automation Society, IEEE/Control System Society

Non-Destructive Inspection of Concrete Structures by Ultrasonic Sensor Based on A Frequency Analysis

Shogo Tanaka, Tomoyuki Wakunaga

Author information

Keywords: concrete structures, cracks, exfoliation, ultrasonic sensor, non-destructive inspection, Frequency analysis

CONFERENCE PROCEEDINGS FREE ACCESS

Pages 466

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Abstract

This paper proposes a non-destructive inspection method based on a frequency analysis using an ultrasonic sensor in succession to our previous method developed in time domain. Our new method analyses an autocorrelation function of the frequency spectrum and enables not only the detection of the cracks but also an accurate measurement of their positions comparatively easily compared to the previous one.

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