模型による方探の船体誤差測定について(日本航海学会第24回講演会)

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タイトル別名
  • On the Measurement of the DF Error due to a Hull by using a Scale Model
  • 模型による方探の船体誤差測定について
  • モケイ ニ ヨル カタタン ノ センタイ ゴサ ソクテイ ニ ツイテ

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抄録

We have an error curve of Direction Finder only after installed the equipment on board, so I think it shall be convenient to know error value approximately and to decide the DF antenna's position to make less error before actual setting. It is well known that the DF error caused by surroundings, the hull of the ship, the masts, the funnel, the rigging, the stays, the derricks etc. This paper shows how to take the approximate error due to the hull by using a scale model. The principle of this experiment is as follow that the electromagnetic field disturbed by the hull is similar to the electric current pattern around dielectric in the equability current field. I selected our college training ship "Fukae Maru" as test boat, and made that model in scale 1/90・In consequence, it can be confirm that the data of this test shows to resemble to actual error.

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