Gyro-stabilizer

Japanese: gyro-stabilizer(英語表記)gyrostabilizer
Gyro-stabilizer

...However, active systems require control devices and power units to detect the lateral rolling of the ship and move the fluid in the tank, making the systems more expensive than passive systems.
[Gyro-stabilizer]
When a spinning top (gyro) spins around a second axis different from the axis of the top, a couple of forces called gyro moment is generated in the direction of a third axis different from the axis of the top and the second axis, and acts on the object supporting the top. The anti-rolling device that uses this principle is the gyrostabilizer, which was first put to practical use in 1906. …

*Some of the terminology that mentions "gyro-stabilizer" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…ただし,能動型では船体の横揺れを検知しタンク内の流体を動かすための制御装置および動力装置が必要であるため,受動型に比べ装置が高価なものとなる。
[ジャイロスタビライザーgyro‐stabilizer]
 高速で回転するこま(ジャイロ)が,こまの軸と異なる第2の軸のまわりに回転するとき,こまの軸および第2の軸とも異なる第3の軸の方向にジャイロモーメントと呼ばれる偶力が発生し,こまを支える物体に作用する。この原理を利用した減揺装置がジャイロスタビライザーで,1906年に最初に実用に供された。…

※「gyro-stabilizer」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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