BUOYANCY ADJUSTMENT DEVICE AND BUOYANCY ADJUSTMENT SYSTEM

To enable actions repeatedly increasing and decreasing buoyancy to be carried out continuously.SOLUTION: A buoyancy adjustment device 10 includes: a ballast tank 13 forming an internal space S having a prescribed volume as well as including a gas chamber S1 filled with gas G in the internal space S; a rubber bladder 14 stored in the internal space S and forming a liquid chamber S2 partitioned from the gas chamber S1 in the internal space S; and a control unit 12 controlling injection of sea water W to the liquid chamber S2 and discharging of the sea water W from the liquid chamber S2.SELECTED DRAWING: Figure 2 【課題】浮力の増減を繰り返す動作を継続的に実施可能とする。【解決手段】浮力調整装置１０は、所定の体積を有する内部空間Ｓを形成すると共に、内部空間ＳにおいてガスＧが充填された気体室Ｓ１を含むバラストタンク１３と、内部空間Ｓに収容されて、内部空間Ｓにおいて気体室Ｓ１とは隔てられた液体室Ｓ２を形成するゴムブラダ１４と、液体室Ｓ２への海水Ｗの注水と、液体室Ｓ２からの海水Ｗの排水と、を制御する制御部１２と、を備える。【選択図】図２