Comparative Measurements of Local Seismic Rotations by Three Independent Methods
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985891%3A_____%2F20%3A00534817" target="_blank" >RIV/67985891:_____/20:00534817 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/00216208:11320/20:10420979
Výsledek na webu
<a href="https://www.mdpi.com/1424-8220/20/19/5679" target="_blank" >https://www.mdpi.com/1424-8220/20/19/5679</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/s20195679" target="_blank" >10.3390/s20195679</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Comparative Measurements of Local Seismic Rotations by Three Independent Methods
Popis výsledku v původním jazyce
A comparative active experiment that is aimed at collocated measurement of seismic rotation rates along three orthogonal axes by means of three different methods is described. The rotation rates in a short-period range of 6-20 Hz were obtained using three different methods: the 6C Rotaphone sensor system developed by the authors, the commercial R-1 rotational sensor by Eentec, and a small-aperture array of twelve standard velocigraphs in a rectangular arrangement. Those three methods are compared and discussed in detail. A medium-size quarry blast was used as a seismic source. At a distance of approximately 240 m, the rotation rates reached an amplitude of the order of magnitude of 10(-4)-10(-5) rad/s. The array derived rotation rates displayed serious limitations, as clearly documented. The R-1 instruments have shown certain technical problems that partly limit their applicability. The measured rotation rates were compared to the relevant acceleration components according to rotation-to-translation relations. Out of all the three methods, the records best matching the acceleration components were made by Rotaphone. The experiment also revealed that rotation rates in the given short-period range noticeably changed over a distance as short as 2 m.
Název v anglickém jazyce
Comparative Measurements of Local Seismic Rotations by Three Independent Methods
Popis výsledku anglicky
A comparative active experiment that is aimed at collocated measurement of seismic rotation rates along three orthogonal axes by means of three different methods is described. The rotation rates in a short-period range of 6-20 Hz were obtained using three different methods: the 6C Rotaphone sensor system developed by the authors, the commercial R-1 rotational sensor by Eentec, and a small-aperture array of twelve standard velocigraphs in a rectangular arrangement. Those three methods are compared and discussed in detail. A medium-size quarry blast was used as a seismic source. At a distance of approximately 240 m, the rotation rates reached an amplitude of the order of magnitude of 10(-4)-10(-5) rad/s. The array derived rotation rates displayed serious limitations, as clearly documented. The R-1 instruments have shown certain technical problems that partly limit their applicability. The measured rotation rates were compared to the relevant acceleration components according to rotation-to-translation relations. Out of all the three methods, the records best matching the acceleration components were made by Rotaphone. The experiment also revealed that rotation rates in the given short-period range noticeably changed over a distance as short as 2 m.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10505 - Geology
Návaznosti výsledku
Projekt
<a href="/cs/project/LTAUSA19083" target="_blank" >LTAUSA19083: Šestisložkové kontinuální monitorování seismických rojů a dalších zemětřesení v oblasti Long Valley Caldera, Kalifornie</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2020
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Sensors
ISSN
1424-8220
e-ISSN
1424-8220
Svazek periodika
20
Číslo periodika v rámci svazku
19
Stát vydavatele periodika
CH - Švýcarská konfederace
Počet stran výsledku
23
Strana od-do
5679
Kód UT WoS článku
000586718000001
EID výsledku v databázi Scopus
2-s2.0-85092217091