Develpment of the acostic and moition data loger for understanding the freshwate dolphin's echolocation strategy

2015 Fiscal Year Final Research Report

• Project/Area Number: 25630398
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Naval and maritime engineering
• Research Institution: The University of Tokyo
• Principal Investigator: SUGIMSTSU Harumi 東京大学, 生産技術研究所, 研究員 (90436577)
• Co-Investigator(Renkei-kenkyūsha): KOJIMA Junichi (株)KDDI研究所, 環境計測プロジェクト, プロジェクトリーダー (50416575) ; URA Tamaki 九州工業大学, 社会ロボット具現化センター, 特別教授 (60111564) ; ASADA Akira 東京大学, 生産技術研究所, 教授 (60323648)
• Research Collaborator: Bahl Rajendar インド工科大学デリー校 ; Behera Sandeep National Mission for Clean Ganga ; Pattnaik Ajit チリカ湖管理局
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: バイオロギング / ガンジスカワイルカ / バイオソーナー / クリック音 / 身体モーション / AUV / 水中録音装置

Outline of Final Research Achievements

For understanding the Ganges River Dolphin's echolocation strategy and underwater behavior, we have been developing the acoustic and motion logger which can be attached to the Ganges river dolphin. To downsize the loger, a built-in hydrophone and pressure sensor (MEMS) unit was newly developed and installed to the prototype to be used for the experiments using an AUV. After comfirming its peformance, an pencil size date logger using the developed built-in unit and its software was finally develped. The experiments using the system along with the non contact type acoustic recording sytem using a 6 hydrophone array were conducted on Novemver 2015 at the Ganges rievrsite. The perfromance of the developed system was demonstreted well. In addition, as an application, a deep sea (2000m) noise recoreder for practical use was realized.

Free Research Field

音響工学