磁気コンパスの減衰運動における慣性能率及減衰係数について(日本航海学会第15回講演会)

抄録

Author studied about the primary problem of the damping curve of the magnetic compass card in the liquid when vessels are yawing or steering at sea, and provided it with second order's differential equations after a systematic experiment. The damping coefficients of the equation are followed. [numerical formula] We can estimate the damping property by them to design the compass cards.