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Small and robust ocean bottom seismometer (OBS) for long period active seismology
Shariat Panahi, Shahram; Carreras Pons, Normandino; Artero Delgado, Carola; Manuel Lázaro, Antonio; Owen, Tim; Molino Minero, Erik
Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica; Universitat Politècnica de Catalunya. SARTI - Centre de Desenvolupament Tecnològic de Sistemes d'Adquisició Remota i Tractament de la Informació
The Ocean Bottom Seismoemter (OBS) is a key instrument for geophysical study of sea sub-bottom layers. At present, more relaible autonomous equipment capable of staying underwater for long periods of time and therefore handling large data storage are needed. This paper presents a new Ocean Bottom Seismometer designed to be used in long period seismic surveys. Power consumption and noise level of the acquisition system are the key points to optimize the autonomy and the data quality. To achieve our goals, a new low power datalogger with high resolution and Signal–to-Noise Ratio (SNR) based on Compactflash memory card is designed to enable continous data acquisition. The equipment has been evaluated in the lab and is going to be used in real environmental conditions in second semester of 2011.
Peer Reviewed
Àrees temàtiques de la UPC::Enginyeria electrònica i telecomunicacions::Instrumentació i mesura::Sensors i actuadors
Ocean bottom--Research
Oceanographic instruments
Earthquake prediction -- Data processing
Sismòmetres marins
Adquisició de dades
Terratrèmols -- Predicció
Fons marins -- Investigació
Institute of Electrical and Electronics Engineers

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