緯度変化に伴う自差の変動について : フリンダースバーの修正用図表(日本航海学会第28回講演会)

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書誌事項

タイトル別名
  • Change of the Compass Deviation Caused by the Differences of Intensity of Geo-Magnetic Field and Its Adjustment
  • 緯度変化に伴う自差の変動について
  • イド ヘンカ ニ トモナウ ジサ ノ ヘンドウ ニ ツイテ

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抄録

There are condiserable troubles for separating and correcting the coefficient B of magnetic compass deviation. The following chart and table are designed for this purpose of correcting the value to be adjusted by Flinders bar. If the B_1 is corrected at a position of Tokyo bay and then B_2 is obtained at a given position, the value shown in the chart multipled by B_2 will be the value to be corrected by Flinders bar at that postion. If the values of intensity of geo-magnetic field at the first and second position will be given, the table will be available in the same purpose.

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