607 Time-domain reflectometryと螺旋Microstrip lineによる金属円管の損傷可視化

DOI Web Site

書誌事項

タイトル別名
  • 607 Crack visualization of circular pipe using time-domain reflectometry with helix microstrip line

抄録

The present study investigated crack visualization in circular pipe using Kriging model and time-domain reflectometry (TDR) with helix microstrip line (MSL). The proposed method was enabled by covering the inspected structure surface with the microstrip conductor without having a bent. The crack visualization experiments were conducted using Kriging model and TDR with helix MSL. The experimental results demonstrated that the crack position could be clearly visualized. Because it only detects the damage beneath the transmission line, the reliability of the estimation between sensor lines is low. We used a Kriging model to visualize the uncertainty of the estimated damage location from TDR measurements. We integrated the estimation and uncertainty contour maps into a single figure for easier understanding and statistical quantification. The visualization of the crack existence probability enables inspectors to judge the crack existence more intuitively using statistically quantitative evidence compared to the separate visualizations of the estimated value and its uncertainty.

収録刊行物

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ