第1回
ネットワーク通信を用いた ECT 迅速診断システムの開発について
著者:
小島 史男,Fumio KOJIMA,小林 太,Futoshi KOBAYASHI,西水 亮,Akira NISHIMIZU,小池 正浩,Masahiro KOIKE,松井 哲也,Tetsuya MATSUI
発刊日:
公開日:
キーワードタグ:
This paper deals with an ECT diagnosis system using network communication. This system consists of an inspection module, a computational m odule and a communication interface module which can visualize some inspection results from the inspection module with ECT and some analys is results from the computation module. Here, three modules are connected through network architecture and communicated each other. Moreov er, an operator can control interactively the inspection and computational modules in order to...
英字タイトル:
Development of ECT Diagnosis System with Network Communication
第6回
原子炉内構造物の溶接部に対する超音波検査技術
著者:
長沼 潤一郎,Junichiro NAGANUMA,吉田 功,Isao YOSHIDA,小池 正浩,Masahiro KOIKE,米谷 豊,Yutaka KOMETANI,河野 尚幸,Naoyuki KOUNO
発刊日:
公開日:
キーワードタグ:
As nuclear power plants age, the importance of maintenance increases and there is a need to apply inspection technologies suitable to importance of each item of equipment. In boiling water reactors, advanced inspection technologies are expected for internal components, i.e. shroud supports with complex-shaped Ni-based alloy welds. As an inspection technology for field inspection of the shroud supports phased array technology has been mainly developed for sizing of Stress Corrosion Crackings accessed from ...
英字タイトル:
Ultrasonic testing techniques for inspection of BWR internal components welds.
第3回
炉内構造物検査用の渦電流探傷技術の開発
著者:
西水 亮,Akira NISHIMIZU,松井 哲也,Tetsuya MATSUI,小池 正浩,Masahiro KOIKE,吉田 功,Isao YOSHIDA,野中 善夫,Yoshio NONAKA
発刊日:
公開日:
キーワードタグ:
1 flexible multi-coil eddy current testing (ECT) probe and a method for measuring the length of flaws have meen developed for inspecting comple x structures in the reactor pressure vessel of nuclear plants. The probe can be applied to curved surfaces that are larger than a curvature rad ius of 20 mm. And we propose the nethod for measuring the flaw length by introducing a decibel drop method of the ECT output signal. From the te st results of various EDM notches using the probe and the measuring method, we...
英字タイトル:
Development of Eddy Current Technique for Components in Reactor Pressure Vessel
第9回
高温超音波センサの開発
著者:
馬場 淳史,Atsushi BABA,武捨 義則,Yoshinori MUSHA,小池 正浩,Masahiro KOIKE,大谷 健一,Kenichi OTANI,平塚 真弘,Masahiro HIRATSUKA
発刊日:
公開日:
キーワードタグ:
Abstract Structural health monitoring (SHM) techniques are needed to maintain the reliability of power plants for long term operation. The high temperature transducers are necessary to realize SHM (monitor wall thickness of the pipings, crack growth in the materials and material evaluation) under the working condition of power plants. We have evaluated lithium niobate (LiNb03) single crystal which is well known as a high Curie temperature piezoelectric material to develop high temperature ultrasonic transd...
英字タイトル:
Development of High Temperature Ultrasonic Transducers