別名「ドア」「パラベイン」と呼ばれています。ストリーマ・ケーブルとつながっており、凧の原理を利用してケーブルを横方向に広げる役割を担います。海上に浮かぶ浮体の部分と、海中のフォイルと呼ばれる羽根状の部分から構成されます。
Connected to the streamer cable, wing shaped device called Foil acts like a kite under water and spread the towed cable.
テールブイは展開されたストリーマケーブル後方に接続するブイです。ブイには人工衛星のGNSS (Global Navigation Satellite System) 信号を受信して、位置情報を無線通信で本船に送る役割があります。
Tail buoy is an equipment located at the end of the streamer cable. Using the GNSS (Global Navigation Satellite System), it monitors the position of towed equippments.
ストリーマ・ケーブルの前方（船尾側）に設置されるブイです。SDC (Streamer Depth Control) の名の通り、ケーブル深度の調節機能を備えています。
As the name of SDC (Streamer Depth Control), this buoy controls the depth of towed streamer cable.
船内のコンプレッサーで圧縮された空気を海中に放出し、弾性波を発生させる装置です。片舷3基で一台のエアガンアレイを構成し、3基あたり合計40台のエアガンを装備しています。異なる容量（周波数）のエアガンを組合すことで鋭い波形と強い振幅を形成しています。
Airgun is a source of seismic wave. By combining about 40 airguns of various capacity on each side, we realize efficient survey on any subsea condition.
船内のコンプレッサーで圧縮された空気を海中に放出し、弾性波を発生させる装置です。片舷3基で一台のエアガンアレイを構成し、3基あたり合計40台のエアガンを装備しています。異なる容量（周波数）のエアガンを組合すことで鋭い波形と強い振幅を形成しています。
Airgun is a source of seismic wave. By combining about 40 airguns of various capacity on each side, we realize efficient survey on any subsea condition.
エアガンは一台ずつ展開されます。調査員がPLC (Programmable Logic Controller)と呼ばれる装置でウィンチとアームを操作し、海中に展開します。
Mechanic on board uses PLC (Programmable Logic Controller) to deploy the airgun into the sea.
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