著者

澤 隆雄 青木 太郎 大澤 弘敬 井上 朝哉 田原 順一郎 伊藤 和彰 吉田 弘 石橋 正二郎 渡辺 佳孝

出版者

特定非営利活動法人 海洋音響学会

雑誌

海洋音響学会誌 (ISSN:09165835)

巻号頁・発行日

vol.36, no.1, pp.26-32, 2009 (Released:2009-08-18)

参考文献数

7

被引用文献数

1

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The Japan Agency for Marine-Earth Science and Technology is developing an automatic bottom inspection and sampling mobile (ABISMO), which is a full-depth rating ROV (Remotely Operated Vehicle) for reaching to the deepest sea bottom, observing it with a camera and sampling the bottom layer. ABISMO consists of a launcher and a vehicle. The launcher is a kind of depressor with many observation devices, and the vehicle is an underwater crawler to move on the sea bottom and inspect it. The mother ship can determine the vehicle's position directly with the ultra-deepwater transponder. The transponder is small and lightweight, with a release system, and it operates at about a 14-kHz frequency. The frequency is higher than that of a conventional full-depth transponder, and it features greater navigation accuracy in shallow water, where many ROV do most of their work. These advantages are emphasized when the transponder is loaded onto an ultra-deepwater vehicle, which needs to be small and lightweight.