Počet záznamů: 1
Network sensor calibration for retrieving accurate moment tensors of acoustic emissions
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SYSNO ASEP 0395221 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Network sensor calibration for retrieving accurate moment tensors of acoustic emissions Tvůrce(i) Davi, Rosalia (GFU-E)
Vavryčuk, Václav (GFU-E) ORCID, RID
Charalampidou, E.-M. (DE)
Kwiatek, G. (DE)Zdroj.dok. International Journal of Rock Mechanics and Mining Sciences. - : Elsevier - ISSN 1365-1609
Roč. 62, September (2013), s. 59-67Poč.str. 9 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova acoustic emissions ; focal mechanisms ; fracturing ; moment tensors ; sensor calibration Vědní obor RIV DC - Seismologie, vulkanologie a struktura Země CEP GAP210/12/1491 GA ČR - Grantová agentura ČR Institucionální podpora GFU-E - RVO:67985530 UT WOS 000323533900008 DOI 10.1016/j.ijrmms.2013.04.004 Anotace We apply a method for retrieving accurate moment tensors in the acoustic emission (AE) experiments based on the joint inversion of a family of AE events for their moment tensors and for the sensor amplifications including coupling effects between sensors and a specimen. The accuracy and efficiency of the method is tested on AEs recorded during three different temporal stages of a triaxial compression experiment on a cylindrical Bentheim sandstone specimen. The results show improved quality of the moment tensors indicated by significantly lower root-mean-square residuals between observed and predicted amplitudes. The approach is particularly suitable for detailed studies of the source parameters of AE events, to obtain accurate focal mechanisms and seismic moment tensors and for detecting fracturing regime of microcracks. Pracoviště Geofyzikální ústav Kontakt Hana Krejzlíková, kniha@ig.cas.cz, Tel.: 267 103 028 Rok sběru 2014
Počet záznamů: 1