26 June 2014 Sensing network for electromagnetic fields generated by seismic activities
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Abstract
The sensors network is becoming prolific and play now increasingly more important role in acquiring and processing information. Cyber-Physical Systems are focusing on investigation of integrated systems that includes sensing, networking, and computations. The physics of the seismic measurement and electromagnetic field measurement requires special consideration how to design electromagnetic field measurement networks for both research and detection earthquakes and explosions along with the seismic measurement networks. In addition, the electromagnetic sensor network itself could be designed and deployed, as a research tool with great deal of flexibility, the placement of the measuring nodes must be design based on systematic analysis of the seismic-electromagnetic interaction. In this article, we review the observations of the co-seismic electromagnetic field generated by earthquakes and man-made sources such as vibrations and explosions. The theoretical investigation allows the distribution of sensor nodes to be optimized and could be used to support existing geological networks. The placement of sensor nodes have to be determined based on physics of electromagnetic field distribution above the ground level. The results of theoretical investigations of seismo-electromagnetic phenomena are considered in Section I. First, we compare the relative contribution of various types of mechano-electromagnetic mechanisms and then analyze in detail the calculation of electromagnetic fields generated by piezomagnetic and electrokinetic effects.
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Naum I. Gershenzon, Naum I. Gershenzon, Gust Bambakidis, Gust Bambakidis, Igor V. Ternovskiy, Igor V. Ternovskiy, } "Sensing network for electromagnetic fields generated by seismic activities", Proc. SPIE 9097, Cyber Sensing 2014, 909703 (26 June 2014); doi: 10.1117/12.2054164; https://doi.org/10.1117/12.2054164
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