（東北大）
著者に関連した記事は45件です。
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第15回
配管減肉測定の高度化を目指した焦点型電磁超音波探触子の開発
著者:
手塚 晃世,孫 宏君,浦山 良一,内一 哲哉,高木 敏行,（東北大）
発刊日:
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キーワードタグ:
Electromagnetic acoustic transducer Flow accelerated corrosion Nondestructive testing Pipe wall thinning Point Focusing EMAT Ultrasonic testing
手塚 晃世,孫 宏君,浦山 良一,内一 哲哉,高木 敏行,（東北大）
発刊日:
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Electromagnetic acoustic transducer Flow accelerated corrosion Nondestructive testing Pipe wall thinning Point Focusing EMAT Ultrasonic testing
Electromagnetic acoustic transducer (EMAT) generates ultrasonic wave without direct contact with the specimen. This feature allows EMAT to be used under higher temperature environment compared with piezoelectric transducer, which means EMAT has a potential to be applied to monitoring of the piping system of operating power plants. However, the conventional EMAT may read thicker than the actual thickness of the pipe wall in the case of degraded pipes with rough surface. This is because the reflected signal i...
英字タイトル:
Development of point focusing electromagnetic acoustic transducer for accurate pipe wall thinning measurement
英字タイトル:
Development of point focusing electromagnetic acoustic transducer for accurate pipe wall thinning measurement
第15回
長期運転を想定した保全のあり方、基本的考え方について
著者:
青木 孝行,（東北大）
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キーワードタグ:
Corrective Measure Technology Degradation Evaluation Technology Inspection Technology Long-term Safe Operation Maintenance PDCA Plant Life Management
青木 孝行,（東北大）
発刊日:
公開日:
キーワードタグ:
Corrective Measure Technology Degradation Evaluation Technology Inspection Technology Long-term Safe Operation Maintenance PDCA Plant Life Management
Based on the fundamentals of facility maintenance, a way of maintenance for long-term safe operation of nuclear power plants was discussed. As a result, several technical issues were listed up....
英字タイトル:
Consideration on How Maintenance for Long-term Operation of Nuclear Power plants should be
英字タイトル:
Consideration on How Maintenance for Long-term Operation of Nuclear Power plants should be
第17回
電磁パルス音響法を用いた鉄筋コンクリートにおける鉄筋腐食の評価
著者:
周 新武, 武田 翔, 内一 哲哉, 橋本 光男, 髙木 敏行,（東北大）
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Concrete structure Corrosion evaluation Elastic wave Electromagnetic Pulse-induced Acoustic Testing Nondestructive testing
周 新武, 武田 翔, 内一 哲哉, 橋本 光男, 髙木 敏行,（東北大）
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キーワードタグ:
Concrete structure Corrosion evaluation Elastic wave Electromagnetic Pulse-induced Acoustic Testing Nondestructive testing
This paper proposed the evaluation of rebar corrosion in reinforced concrete by an electromagnetic pulse-induced acoustic testing method. A strong pulsed electromagnetic force is applied to the specimen, and the rebars will generate the elastic waves. The difference in the bonding force between the rebars and concrete depending on rust is evaluated based on the intensity and waveform variation of elastic waves. In this study, the rusted and un- rusted rebar specimens are prepared, and the AE sensor is place...
英字タイトル:
Evaluation of Rebar Corrosion in Reinforced Concrete using Electromagnetic Pulse-induced Acoustic Testing Method
英字タイトル:
Evaluation of Rebar Corrosion in Reinforced Concrete using Electromagnetic Pulse-induced Acoustic Testing Method
第15回
電磁超音波共鳴法による配管減肉測定技術と原子炉配管への適用
著者:
高木 敏行,内一 哲哉,浦山 良一,孫 宏君,（東北大）
発刊日:
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キーワードタグ:
electromagnetic acoustic resonance monitoring system nondestructive testing pipe wall thinning thickness measurement
高木 敏行,内一 哲哉,浦山 良一,孫 宏君,（東北大）
発刊日:
公開日:
キーワードタグ:
electromagnetic acoustic resonance monitoring system nondestructive testing pipe wall thinning thickness measurement
In this study, we developed a method to measure pipe wall thinning by electromagnetic acoustic resonance method (EMAR) which is one of electromagnetic ultrasonic method. The EMAR can evaluate the thickness of piping with high accuracy. In addition, we propose a method to obtain the resonance frequency with high accuracy when the thickness reduction progresses and the SN ratio decreases. We applied the technology to PWR and BWR pipings and examined its applicability....
英字タイトル:
Wall thickness measurement of piping using electromagnetic acoustic resonance method and its application to nuclear reactor cooling system
英字タイトル:
Wall thickness measurement of piping using electromagnetic acoustic resonance method and its application to nuclear reactor cooling system
第16回
電磁超音波共鳴法を用いた配管減肉の評価可能性
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）
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キーワードタグ:
Electromagnetic Acoustic Resonance Electromagnetic Acoustic Transducer Flow Accelerated Corrosion Pipe-wall-thinning Superposition of nth Compression
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:
キーワードタグ:
Electromagnetic Acoustic Resonance Electromagnetic Acoustic Transducer Flow Accelerated Corrosion Pipe-wall-thinning Superposition of nth Compression
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...
英字タイトル:
Study of evaluation accuracy of pipe-wall-thinning using electromagnetic acoustic resonance
英字タイトル:
Study of evaluation accuracy of pipe-wall-thinning using electromagnetic acoustic resonance