A low-power data acquisition system for geomagnetic observatories and variometer stations
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Published:2017-09-20
Issue:2
Volume:6
Page:345-352
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ISSN:2193-0864
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Container-title:Geoscientific Instrumentation, Methods and Data Systems
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language:en
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Short-container-title:Geosci. Instrum. Method. Data Syst.
Author:
Morschhauser Achim, Haseloff Jürgen, Bronkalla Oliver, Müller-Brettschneider Carsten, Matzka JürgenORCID
Abstract
Abstract. A modern geomagnetic observatory must provide data of high stability, continuity, and resolution. The INTERMAGNET network has therefore specified quantitative criteria to ensure a high quality standard of geomagnetic observatories. Here, we present a new data acquisition system which was designed to meet these criteria, in particular with respect to 1 Hz data. This system is based on a Raspberry Pi embedded PC and runs a C+ + data acquisition software. As a result, the data acquisition system is modular, cheap, and flexible, and it can be operated in remote areas with limited power supply. In addition, the system is capable of near-real-time data transmission, using a reverse SSH tunnel to work with any network available. The system hardware was successfully tested at the Niemegk observatory for a period of 1 year and subsequently installed at the Tatuoca observatory in Brazil.
Publisher
Copernicus GmbH
Subject
Atmospheric Science,Geology,Oceanography
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