Title :
Development of seafloor displacement monitoring system using a 3-component servo-accelerometer
Author :
Saito, H. ; Yokoyama, T.
Author_Institution :
Eng. Advancement Assoc. of Japan, Oyo Corp., Tsukuba
Abstract :
In order to monitor the seafloor stability during methane hydrate productions, a monitoring system continuously measuring seafloor displacement will be required. We have been developing a system that mainly consists of a 3-component servo- accelerometer and gimbaled mechanism in a pressure chamber. The observed acceleration waveform data are used to calculate displacements by double integrals after noise reduction. After the development and evaluation of the initial experimental model system, we have been developing and testing a prototype system. As the results of those tests, we confirmed that the monitoring by servo-accelerometer is practical.
Keywords :
accelerometers; oceanographic equipment; seafloor phenomena; 3-component servo-accelerometer; acceleration waveform data; gimbaled mechanism; methane hydrate productions; pressure chamber; prototype system; seafloor displacement monitoring system development; seafloor stability monitoring; Acceleration; Accelerometers; Continuous production; Displacement measurement; Monitoring; Noise reduction; Production systems; Sea floor; Stability; System testing;
Conference_Titel :
OCEANS 2008 - MTS/IEEE Kobe Techno-Ocean
Conference_Location :
Kobe
Print_ISBN :
978-1-4244-2125-1
Electronic_ISBN :
978-1-4244-2126-8
DOI :
10.1109/OCEANSKOBE.2008.4530979
