To provide an inspection technique for an underwater cable with which no inspection portion is lost when a device is swept away by a tidal wave and an inspection position can be specified.SOLUTION: An inspection device 10 includes: an unmanned submarine vehicle 15; a clamp meter 11 that clamps to an underwater cable 31 to acquire a current flowing in the underwater cable 31 as a detection waveform; an arithmetic unit for calculating a phase difference between the detected waveform of the clamp meter 11 and a reference waveform; and a position specifying unit 48 for specifying an inspection position in the underwater cable 31 based on the phase difference.SELECTED DRAWING: Figure 2

    【課題】装置が潮流に流されて点検箇所を見失うことがなく、さらに点検位置の特定が可能な、水中ケーブルの点検技術を提供する。【解決手段】点検装置10は、無人潜水機15と、水中ケーブル31にクランプしこの水中ケーブル31に流れる電流を検出波形として取得するクランプメータ11と、クランプメータ11の検出波形と基準波形との位相差を演算する演算部と、この位相差に基づいて水中ケーブル31における点検位置を特定する位置特定部48と、を備えている。【選択図】図2


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    Title :

    DEVICE, METHOD, AND PROGRAM FOR INSPECTING UNDERWATER CABLE


    Additional title:

    水中ケーブルの点検装置、方法及びプログラム


    Contributors:

    Publication date :

    2023-05-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B63C LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS , Zuwasserlassen, Trockenstellen, Docken oder Bergen von Schiffen / F03D Windkraftmaschinen , WIND MOTORS / H02G INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES , Verlegen oder Installieren elektrischer Kabel oder Leitungen, Verlegen oder Installieren kombinierter optischer und elektrischer Kabel oder Leitungen



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