Title :
Power Supply System for Toyohashi Cabled Observatory with Wide Input-range
Author :
Asakawa, K. ; Furukawa, K. ; Yokobiki, T. ; Yamaguchi, A. ; Goto, T. ; Tazaki, K.
Author_Institution :
Japan Agency for Marine-Earth Sci. & Technol.-JAMSTEC, Yokosuka
Abstract :
A new cabled observatory off Toyohashi in central Japan is now being developed. In this area, mega-thrust earthquakes are anticipated, and continuous long-term monitoring is needed to promote seismic study and to mitigate disasters. It will use a pair of decommissioned underwater optical telecommunication cables of 60 kilometers in length. A new junction box will be deployed at the end of the cable which will be equipped with five underwater mateable connectors. The cables will also be used to electromagnetically study the inner structure of crust. In order to use the cable as a low-frequency emitting antenna, the authors developed a new power supply system in which supply voltage/current can be widely controlled. This paper will describe the outline of the observatory and the power supply system
Keywords :
oceanographic equipment; power supplies to apparatus; seismometers; submarine cables; Toyohashi cabled observatory; central Japan; crust inner structure; disasters mitigation; electromagnetically study; junction box; mega-thrust earthquakes; power supply system; seafloor seismographic observatory; seismic study; underwater mateable connectors; underwater optical telecommunication cables; voltage-current supply; Communication cables; Current supplies; Earthquakes; Electromagnetic fields; Marine technology; Observatories; Optical fiber cables; Power supplies; Sea floor; Underwater cables;
Conference_Titel :
OCEANS 2006
Conference_Location :
Boston, MA
Print_ISBN :
1-4244-0115-1
Electronic_ISBN :
1-4244-0115-1
DOI :
10.1109/OCEANS.2006.306968
