連続肉厚測定が可能な超音波探触子の肉厚測定精度妥当性評価
英字タイトル:
The evaluation of validity of accuracy in measuring thickness by ultrasonic probe for continuous measurement of pipe thickess
著者:
酒井 裕介 吉田 正志 松下 義昭 栗原 恵 （東京電力HD）
発刊日:
公開日:
Condition-Based MaintenanceDry couplingIoTNondestructive inspectionOn-line monitoringPipe wall thinningReduction of radiation exposureRemote monitoringUltrasonic testing probeWall thickness measurement
The evaluation of validity of accuracy in measuring thickness by ultrasonic probe for continuous measurement of pipe thickess
著者:
酒井 裕介 吉田 正志 松下 義昭 栗原 恵 （東京電力HD）
発刊日:
公開日:
カテゴリ: 第16回
キーワードタグ:Condition-Based MaintenanceDry couplingIoTNondestructive inspectionOn-line monitoringPipe wall thinningReduction of radiation exposureRemote monitoringUltrasonic testing probeWall thickness measurement
概要
In power plant, most of the pipe is examined for confirming the thickness of the pipe wall during the period of inspection in the suspension of the plant. As pipe thinning phenomenon can progress mostly in the running of the plant, the measuring for the thickness value in running time is needed for confirmation of health and safety evaluation precisely. In this study, “Flex Dry UTM” was developed as a new type of UT system for making it possible to monitor pipe wall thickness continuously. Its measuring performance was evaluated by simulating the pipe thinning phenomenon continuously. The accuracy and validity were evaluated with regard to the influence of thinning surface shape and residual thickness.
