Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/117863
Título: Novel Deep-Water Tidal Meter for Offshore Aquaculture Infrastructures
Autores/as: Sosa González, Carlos Javier 
Montiel-Nelson, Juan A. 
Clasificación UNESCO: 3307 Tecnología electrónica
Palabras clave: Accelerometer
Mems
Ocean Tides
Offshore Aquaculture Infrastructures
Underwater Sensors, et al.
Fecha de publicación: 2022
Publicación seriada: Sensors (Switzerland) 
Resumen: This paper presents a tidal current meter that is based on the inertial acceleration principle for offshore infrastructures in deep water. Focusing on the marine installations of the aquaculture industry, we studied the forces of tides at a depth of 15 m by measuring the acceleration. In addition, we used a commercial MEMS triaxial accelerometer to record the acceleration values. A prototype of the tidal measurement unit was developed and tested at a real offshore aquaculture infrastructure in Gran Canaria, which is one of the Canary Islands in the Atlantic Ocean. The proposed tidal measurement unit was used as a recorder to assess the complexity of measuring the frequency of tidal currents in the short (10 min), medium (one day) and long term (one week). The acquired data were studied in detail, in both the time and frequency domains, to determine the frequency of the forces that were involved. Finally, the complexity of the frequency measurements from the captured data was analyzed in terms of sampling ratio and recording duration, from the point of view of using our proposed measurement unit as an ultra-low-power embedded system. The proposed device was tested for more than 180 days using a lithium-ion battery. This working period was three times greater than the best alternative in the literature because of the ultra-low-power design of the on-board embedded system. The measurement accuracy error was lower than 1% and the resolution was 0.01 cm/s for the 0.8 m/s velocity scale. This performance was similar to the best Doppler solution that was found in the literature.
URI: http://hdl.handle.net/10553/117863
ISSN: 1424-8220
DOI: 10.3390/s22155513
Fuente: Sensors (Basel, Switzerland)[EISSN 1424-8220],v. 22 (15), (Julio 2022)
Colección:Artículos
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