Underwater mobile body

Abstract

An underwater mobile body capable of acquiring information on hydrosphere and moving between a position under water and a water surface includes: a body unit provided with a data acquisition device that acquires hydrosphere information, and a specific gravity adjusting device that adjusts the position of the underwater mobile body under water; and an antenna unit arranged at a tail of the body unit and provided with an antenna that transmits the acquired hydrosphere information, wherein the antenna unit holds the antenna such that the antenna is able to turn in a vertical direction.

1 . An underwater mobile body capable of acquiring information on hydrosphere and moving between a position under water and a water surface, comprising:
 a body unit provided with a data acquisition device that acquires the hydrosphere information, and a specific gravity adjusting device that adjusts the position of the underwater mobile body under water; and   an antenna unit arranged at a tail of the body unit and provided with an antenna that transmits the acquired hydrosphere information,   wherein the antenna unit holds the antenna such that the antenna is able to turn in a vertical direction.   
     
     
         2 . The underwater mobile body according to  claim 1 , wherein the antenna unit includes a pair of supporting members extending rearward from the body unit, a pivot shaft rotatably connected to the supporting members, the antenna projecting from a peripheral surface of the pivot shaft, and a weight member joined to the pivot shaft and located opposite the antenna. 
     
     
         3 . The underwater mobile body according to  claim 2 , wherein a communication cable connected to the antenna is passed through interiors of the antenna, the pivot shaft and the supporting member to be guided to the body unit. 
     
     
         4 . The underwater mobile body according to  claim 1 , wherein the antenna is able to turn through an angle of at least 180 degrees or more. 
     
     
         5 . The underwater mobile body according to  claim 2 , wherein the antenna is able to turn through an angle of at least 180 degrees or more. 
     
     
         6 . The underwater mobile body according to  claim 3 , wherein the antenna is able to turn through an angle of at least 180 degrees or more.