配管内異常物体の位置, 厚みおよび断面積計測について Measurement of Location, Thickness and Cross-Sectional Area of Abnormal Objects in Pipes

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In pipe systems for water, gas and electric power transports and also for communication lines, it is greatly important to detect abnormalities in the pipes as accurately and promptly as possible, from the viewpoint of realizing a rapid restoration of the life lines. The paper proposes a method which measures the location, thickness and cross-sectional area of the abnormal objects in pipes based on the reflected wave. When transmitting a sonic wave into the pipes, many reflections are usually generated from not only the abnormal objects but also the pipe ends and the branch points in the pipes. To make the problem much worse, they are strongly superposed to each other. The paper thus proposes to apply a separation technique based on the reflected wave model and enables the measurement of the location, thickness and cross-sectional area of the abnormal objects, despite an exact information on the shape and length of the pipe system.

収録刊行物

  • 計測自動制御学会論文集  

    計測自動制御学会論文集 34(11), 1565-1573, 1998-11-30 

    The Society of Instrument and Control Engineers

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各種コード

  • NII論文ID(NAID)
    10002480057
  • NII書誌ID(NCID)
    AN00072392
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    04534654
  • NDL 記事登録ID
    4606701
  • NDL 雑誌分類
    ZM11(科学技術--科学技術一般--制御工学)
  • NDL 請求記号
    Z14-482
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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