Japan, Sept. 16 -- KAJIMA CORP has got intellectual property rights for 'METHOD FOR DETECTING RELATIVE DISPLACEMENT ON CONCRETE FRONT SURFACE.' Other related details are as follows:
Application Number: JP,2023-019209
Category (FI): G01D5/353@B,G01B11/16@Z
Stage: PROBLEM TO BE SOLVED: To provide a method for detecting relative displacement on a concrete front surface, capable of accurately detecting the relative displacement along an optical fiber on the concrete front surface.SOLUTION: A method for detecting relative displacement of a concrete front surface includes: an optical fiber installation process for installing an optical fiber 10 on a front surface 2 of concrete 1 so as to alternately have fixing parts 21 where the optical fiber 10 is fixed to the front surface 2 of the concrete 1 and non-fixing parts 22 where the optical fiber is not fixed to the front surface 2 of the concrete 1; and a detection process for detecting the width of a crack generated on the front surface 2 of the concrete 1 based on a distortion generated in the optical fiber 10 in each one of the non-fixing parts 22. In the optical fiber installation process, fixing jigs 30 including a columnar optical fiber winding part 32 are fixed to the front surface 2 of the concrete 1, and the optical fiber 10 is wound along a side surface 32a of the optical fiber wounding part 32 by one round or more, thereby to constitute the fixing part 21.SELECTED DRAWING: Figure 4 (Grant)
Filing Date: Feb. 10, 2023
Publication Date: Aug. 23, 2024
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100
Disclaimer: Curated by HT Syndication.
