電磁超音波共鳴法を用いた配管減肉の評価可能性
英字タイトル:
Study of evaluation accuracy of pipe-wall-thinning using electromagnetic acoustic resonance
著者:
岩田 大輝 武田 翔 内一 哲哉 廣瀬 悠一 遊佐 訓孝 高木 敏行 （東北大）
発刊日:
公開日:
Electromagnetic Acoustic ResonanceElectromagnetic Acoustic TransducerFlow Accelerated CorrosionPipe-wall-thinningSuperposition of nth Compression
Study of evaluation accuracy of pipe-wall-thinning using electromagnetic acoustic resonance
著者:
岩田 大輝 武田 翔 内一 哲哉 廣瀬 悠一 遊佐 訓孝 高木 敏行 （東北大）
発刊日:
公開日:
カテゴリ: 第16回
キーワードタグ:Electromagnetic Acoustic ResonanceElectromagnetic Acoustic TransducerFlow Accelerated CorrosionPipe-wall-thinningSuperposition of nth Compression
概要
Electromagnetic acoustic resonance (EMAR) method is used for online evaluation of pipe-wall-thinning. In this study, the thickness of the specimens corroded under various conditions is evaluated by EMAR. The thickness is estimated applying the superposition of n th compression (SNC) method to the signals obtained from EMAR. The error of thickness evaluation is investigated in view of thinning shape and the roughness caused by corrosion. As a result, it is suggested that the shape on the order of mm does not affect the error in estimated thickness.
