|発明の名称||METHOD OF INSPECTING STRUCTURE|
PROBLEM TO BE SOLVED: To provide a method of inspecting a structure by a hammering method which generates no variance among inspection results, according to the present invention.
SOLUTION: A method comprises: forming a test piece simulating a defect in concrete; performing operation by a hammering method for detecting a defect place and a defect state on the test piece; acquiring acoustic data obtained by hammering; taking frequency analysis by wavelet transformation on the acquired acoustic data; recognizing a binarized image from the analyzed data; representing a profile of the recognized image with a complex number, respectively; accumulating numerals by a complex PARCOR coefficient obtained from the represented complex number as data in advance; then comparing the numeral of the complex PARCOR coefficient as the data with a numeral of a complex PARCOR coefficient obtained from a complex representing a profile of an arbitrary image; recognizing the arbitrary image having a small difference between both the numerals as a profile of an image as data in the comparison; and thus detecting a defect place and a defect state of a structure.
- 国立大学法人京都大学 産官学連携本部
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