Kousuke UMETANI
著者に関連した記事は3件です。
更新情報
第7回
流れ加速腐食を想定した配管厚さ測定への電磁超音波探触子の適用について
著者:
小坂 大吾,Daigo KOSAKA,小島 史男,Fumio KOJIMA,梅谷 浩介,Kousuke UMETANI
発刊日:
公開日:
キーワードタグ:
Cavitation Condition Monitoring Flow-Accelerated Corrosion Nondestructive Test On-line Monitoring
小坂 大吾,Daigo KOSAKA,小島 史男,Fumio KOJIMA,梅谷 浩介,Kousuke UMETANI
発刊日:
公開日:
キーワードタグ:
Cavitation Condition Monitoring Flow-Accelerated Corrosion Nondestructive Test On-line Monitoring
This paper is concerned with quantitative evaluation of pipe wall thickness Electro Magnetic Acoustic Transducer (EMAT). This pipe wall thinning occurs on a piping internal wide range at an orifice, an elbow, and a reducer downstream. A shape of a pipe wall thinning like Flow-Accelerated Corrosion (FAC) is near arc. And a pipe wall thinning has the s urface like scales. Test samples were fabricated to simulate FAC in the series of experiments. A shape of corrosion of the test samples is arc. Other test sam...
英字タイトル:
Measurement of Pipe Wall Thickness using EMAT in Flow-Accelerated Corrosion
英字タイトル:
Measurement of Pipe Wall Thickness using EMAT in Flow-Accelerated Corrosion
論文
配管厚さ測定への電磁超音波探触子の適用
著者:
小坂 大吾,Daigo KOSAKA,小島 史男,Fumio KOJIMA,梅谷 浩介,Kousuke UMETANI
発刊日:
公開日:
キーワードタグ:
Cavitation Condition Monitoring Flow-Accelerated Corrosion Nondestructive Test On-line Monitoring
小坂 大吾,Daigo KOSAKA,小島 史男,Fumio KOJIMA,梅谷 浩介,Kousuke UMETANI
発刊日:
公開日:
キーワードタグ:
Cavitation Condition Monitoring Flow-Accelerated Corrosion Nondestructive Test On-line Monitoring
This paper is concerned with quantitative evaluation of pipe wall thickness using Electro-Magnetic Acoustic Transducer. Various test specimens are fabricated to simulate Flow-Accelerated Corrosion (FAC). First, measurements by Electro-Magnetic Resonance (EMAR) technique are examined. It is found that the resolution of thickness measurements is superior to the Pulse-Echo method. On the other hand, the measurement by EMAR is time-consuming because it requires long range of sweeping frequencies. Secondl...
英字タイトル:
Measurement of Pipe Wall Thickness using Electro Magnetic Acoustic Transducer
英字タイトル:
Measurement of Pipe Wall Thickness using Electro Magnetic Acoustic Transducer
第7回
電磁超音波共鳴法を用いた配管厚さ寸法計測のための信号処理法
著者:
小島 史男,Fumio KOJIMA,小坂 大吾,Daigo KOSAKA,梅谷 浩介,Kousuke UMETANI
発刊日:
公開日:
キーワードタグ:
acoustic resonance Condition monitoring signal processing ultra-sound test
小島 史男,Fumio KOJIMA,小坂 大吾,Daigo KOSAKA,梅谷 浩介,Kousuke UMETANI
発刊日:
公開日:
キーワードタグ:
acoustic resonance Condition monitoring signal processing ultra-sound test
This paper is concerned with signal processing arising in pipe wall thinning measurements using electromagnetic acoustic transducer (EMAT). First, electromagnetic acoustic resonance method (EMAR) is applied to pipe wall thickness measurement. Secondly, a heuristic method for extracting features of resonance spectrum obtained by testing data is proposed. Finally , the validity and the feasibility of our proposed method are demonstrated through the practical test at the real plant....
英字タイトル:
Signal Processing for Pipe Wall Thickness Measurements using Electromagnetic Acoustic Resonance Method
英字タイトル:
Signal Processing for Pipe Wall Thickness Measurements using Electromagnetic Acoustic Resonance Method