To provide a demagnetization system, structure, and demagnetization method, capable of more accurately performing demagnetization even when a magnetization state of the structure has changed.SOLUTION: A demagnetization system is to be applied to a structure 1 configured to include a magnetic member, the demagnetization system comprising: a demagnetization coil 3 for generating a magnetic field for canceling a magnetic field externally generated by the structure 1; a magnetic sensor 2 for measuring a variation in a vector value or intensity of the magnetic field generated by the structure 1; a cancel coil 4 for generating a magnetic field for canceling a magnetic field generated around an installation position of the magnetic sensor 2 by the demagnetization coil 3; and a control device 5 for controlling values of flowing current of the demagnetization coil 3 and the cancel coil 4. The control device 5 comprises a demagnetization coil current setting unit for setting a value of the flowing current of the demagnetization coil 3 on the basis of the variation in the vector value or intensity of the magnetic field measured by the magnetic sensor 2.SELECTED DRAWING: Figure 1

    【課題】構造体の着磁状態が変化した場合であっても、より精度高く消磁を行うことができる消磁システム、構造体、及び消磁方法を提供することを目的とする。【解決手段】磁性部材を含んで構成されている構造体1に適用される消磁システムであって、構造体1が外部に発生させる磁場を打ち消すための磁場を発生させる消磁コイル3と、構造体1が発生させる磁場のベクトル値もしくは強度の変動分を計測する磁気センサ2と、消磁コイル3が磁気センサ2の設置位置周辺に発生させる磁場を打ち消すための磁場を発生させるキャンセルコイル4と、消磁コイル3及びキャンセルコイル4の通電電流の値を制御する制御装置5と、を備え、制御装置5は、磁気センサ2により計測された磁場のベクトル値もしくは強度の変動分に基づいて消磁コイル3の通電電流の値を設定する消磁コイル電流設定部を備える。【選択図】図1


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    Title :

    DEMAGNETIZATION SYSTEM, STRUCTURE, AND DEMAGNETIZATION METHOD


    Additional title:

    消磁システム、構造体、及び消磁方法


    Contributors:
    IKEDA AKIO (author) / AOI TATSUFUMI (author) / SHIMIZU KYUSHI (author)

    Publication date :

    2019-09-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H01F MAGNETS , Magnete / B63G OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS , Angriffs- oder Verteidigungsanordnungen auf Schiffen



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