Design of seismic acquisition system for volcanology

This paper presents a new design based on acquisition system of the volcanic seismic data. Mainly, this system is composed of a microcontroller to manage the peripherals, a module to acquire the information of seismic sensor and a module of communications that contains the RF and GPS system. The prototype aims to be a very low power system allowing also working during a complete year.Peer ReviewedPostprint (published version

ADC module built for an ocean bottom seismometer (OBS)

This paper presents the new data acquisition system designed for autonomous Ocean Bottom Seismometers (OBS) to study the earth dynamics and internal structure. This part is the responsible to acquire the signals from two different sensors to be processed. The analog-to-digital converter module is based on input amplifiers, modulator and digital filter.Peer ReviewedPostprint (published version

Small instrument to volcanic seismic signals

Postprint (published version

Design of seismic acquisition system for volcanology

This paper presents a new design based on acquisition system of the volcanic seismic data. Mainly, this system is composed of a microcontroller to manage the peripherals, a module to acquire the information of seismic sensor and a module of communications that contains the RF and GPS system. The prototype aims to be a very low power system allowing also working during a complete year.Postprint (published version

Watertight test for OBSEA equipments in the hyperbaric chamber

Description of the procedures to assure the proper water protection of the equipments to be installed in the OBSEA subsea observatory.Peer ReviewedPostprint (published version

Precision timing in TDMA - based Wireless Sensor Network through IEEE 1588 standard

This paper proposes an energy-efficient time synchronization scheme for Wireless Sensor Networks(WSNs) based on the IEEE 1588 standard. Although a number of methods have been studied for time synchronization of WSNs, some applications require high precision time synchronization with very low power consumption. This paper presents a reduced implementation of IEEE 1588 precision time protocol (PTP) for WSNs. Within the proposed synchronization approach, a sensor node is synchronized using the timing message generated by a master node synchronized with GPS. This paper also presents experiments to evaluate the performance of the precision time synchronization of a slave-master pair of sensor nodes.Peer ReviewedPostprint (published version

Automated data quality assurance using OGC sensor web enablement frameworks for marine observatories

Postprint (published version

Data acquisition system for volcanic seismic

This paper presents a design that is being created for the acquisition of volcanic seismic data. This system is composed by a microcontroller to management the peripherals, a module to acquire the information of seismic sensor and the module of communications that is composed of the RF and the GPS system. The prototype will be a very low power system and it will allow work during a complete year.Postprint (published version

Piezoelectric energy harvesting system for volcanic seismic acquisition equipment

–In this paper it is presented a volcanic seismic acquisition equipment that has been developed together with an energy harvesting system, based on piezoelectric elements, in order to work in autonomous conditions. The energy harvesting system has been developed to convert the wind or marine currents energy into electrical energy through a new method based on piezoelectrics. For the deployment of the volcanic seismic acquisition equipment in marine environments, this power generator produces energy obtained from harnessing of the kinetic energy of marine currents. The first results have shown that the system is capable to provide a small amount of energy that can be used to extend the deployment time of the volcanic seismic acquisition equipment.Peer ReviewedPostprint (published version

Piezoelectric energy harvesting system for volcanic seismic acquisition equipment

In this paper it is presented a volcanic seismic acquisition equipment that has been developed together with an energy harvesting system, based on piezoelectrics elements, in order to work in autonomous conditions. The energy harvesting system it has been developed to convert the wind or marine currents energy into electrical energy through a new method based on piezoelectrics. For the deployment of the volcanic seismic acquisition equipment in marine environments, this power generator produces energy obtained from harnessing of the kinetic energy of marine currents. The first results have shown that the system it is capable to provide a small amount of energy that can be used to extend the deployment time of the volcanic seismic acquisition equipment.Peer Reviewe