Detection of Cracks in Concrete Pillars Using an Acceleration Pickup

Masayuki Okamoto; Hiroshi Fujimoto; Shogo Tanaka

doi:10.11499/sicep.2004.0_22_2

SICE Annual Conference 2004

DOI https://doi.org/10.11499/sicep.2004.0_22_2

Conference information

Host: The Society of Instrument and Control Engineers

Co-host: The IEEE Industrial Electronics Society, The IEEE Robotics and Automation Society, The IEEE Control Systems Society, The IEEE Systems, Man and Cybernetics Society, The Instrumentation, Systems, and Automation Society

Detection of Cracks in Concrete Pillars Using an Acceleration Pickup

*Masayuki Okamoto, Hiroshi Fujimoto, Shogo Tanaka

Author information

Keywords: detection of cracks, concrete pillar, acceleration pickup

CONFERENCE PROCEEDINGS FREE ACCESS

Pages 22

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Abstract

This paper provides the method of detecting cracks in concrete pillars by using an acceleration pickup. By giving a shock on the pillar with a hammer, several types of stationary waves generated in the pillar are observed with the sensor on an edge of the pillar. The method identifies the location of the cracks by modeling the sensor output as an output of a linear dynamic system with unknown parameters and applying a Kalman filter and the maximum likelihood method.

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