内面の粗さと曲率を考慮した電磁超音波共鳴法による配管減肉評価
英字タイトル:
Evaluation of pipe wall thinning with electromagnetic acoustic resonance method considering effects of roughness and curvature of inner surface.
著者:
木村 周平 武田 翔 内一 哲哉 遊佐 訓孝 Gildas Diguet （東北大）
発刊日:
公開日:
Electromagnetic acoustic resonance methodElectromagnetic acoustic transducerthickness measurement，Flow Accelerated Corrosion，pipe wall thinning
Evaluation of pipe wall thinning with electromagnetic acoustic resonance method considering effects of roughness and curvature of inner surface.
著者:
木村 周平 武田 翔 内一 哲哉 遊佐 訓孝 Gildas Diguet （東北大）
発刊日:
公開日:
カテゴリ: 第17回
キーワードタグ:Electromagnetic acoustic resonance methodElectromagnetic acoustic transducerthickness measurement，Flow Accelerated Corrosion，pipe wall thinning
概要
Electromagnetic acoustic resonance (EMAR) method is useful for measuring thickness of pipe. But in the case of thickness changing complicatedly in part of pipe wall thinning for various factor, accurate thickness measurement is difficult. In this study, thickness of specimens of pipe corroded under various conditions is evaluated by EMAR. The error of thickness evaluation is investigated in view of maximum value of spectrum and roughness and curvature of pipe. As a result, it is suggested that signal strength is important factor in EMAR measurement accurately.
