Development and programming of Geophonino: A low cost Arduino-based seismic recorder for vertical geophones

Abstract

The commercial data acquisition systems used for seismic exploration are usually expensive equipment. In this work, a low cost data acquisition system (Geophonino) has been developed for recording seismic signals from a vertical geophone. The signal goes first through an instrumentation amplifier, INA155, which is suitable for low amplitude signals like the seismic noise, and an anti-aliasing filter based on the MAX7404 switched-capacitor filter. After that, the amplified and filtered signal is digitized and processed by Arduino Due and registered in an SD memory card. Geophonino is configured for continuous registering, where the sampling frequency, the amplitude gain and the registering time are user-defined. The complete prototype is an open source and open hardware system. It has been tested by comparing the registered signals with the ones obtained through different commercial data recording systems and different kind of geophones. The obtained results show good correlation between the tested measurements, presenting Geophonino as a low-cost alternative system for seismic data recording.

Seismic damage scenarios in the municipa lities of Elche and Alicante (Spain ). A first step to the emergency planning

“…The geophysical microzonation campaign was carried out using a 500×500 meters grid with 90 measurement points for the urban area of Elche and 123 measurements for the urban area of Alicante. These measurements were recorded using mark l-4c-3D 1 hz sensors connected to reftek and geophonino [14] digitizers. Additionally, array measurements were also taken at two different sites of the city of Elche by three circular arrays composed of five VSE-15D sensors surrounding a sixth similar.…”

Design and test of Geophonino-3D: A low-cost three-component seismic noise recorder for the application of the H/V method

“…In the field of seismology, Saraò et al [17] have developed a low-cost Arduino based seismometer for educational purposes, although the sampling rate of the recorded signals is not constant and the units of the amplitude are not calibrated. In a recent research project of the authors [18], a 1-channel seismic recorder prototype based on Arduino has been developed and its suitability for active seismic has been assessed comparing its performance respecting to other commercial acquisition equipment: the DT321 PCI data acquisition board and the RAS-24 exploration seismograph. However, the 12-bits resolution of the A/D converter and the fixed voltage gain might become serious inconveniences when it is used for passive seismic applications, such as the H/V method.…”

Sistema De Monitoreo Y Control Remoto Ip Para Una Salida De Alumbrado

“…The existing platforms in the market were analyzed to establish the most appropriate development system, such as Arduino® Uno, Yun, Leonardo, Due, Mega and Nano, which offer benefits depending on the type of microcontroller, port, memory, etc. According to the demands of the presented prototype, it was determined that the most proper platform was the Arduino Nano® [14], because of its compact size, low cost, 32kB memory and SPI (Serial Peripheral Interface) [15] communication with other devices.…”