A Small-Scale Strainmeter with Three Components
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Accession number;07A0041907
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| Title;A Small-Scale Strainmeter with Three Components |
| Author;
ONOUE KENSUKE
(Kyoto Univ., Disaster Prev. Res. Inst., JPN)
MATSUO SHIGEMITSU
(Kyoto Univ., Graduate School of Human and Environmental Studies, JPN)
HOSO YOSHINOBU
(Kyoto Univ., Disaster Prev. Res. Inst., JPN)
TAKAHASHI TERUO
(Kyoto Univ., Graduate School of Human and Environmental Studies, JPN)
ISHII HIROSHI
(Tonojishinkagakuken)
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Journal Title;Abstracts for Annuals. Disaster Prevention Research Institute, Kyoto University (CD-ROM)
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Journal Code:S0431B
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ISSN:
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VOL.;NO.49;PAGE.NO.49B,263-268(2006)
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| Figure&Table&Reference;FIG.7, REF.4 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;We made a trial manufacture of a improved short span strainmeter with three components by using a mechanical magnification system. The cylinder of the short span strainmeter was installed into hard rock deeper than before at Osakayama Observatory. The orientations of the short span strainmeter with three components were N38E(SpE3), N52W(SpE1) and N83W(SpE2). The N38E(SpE3) and N52W(SpE1) were at the same orientation as the long span strainmeter E3 in the tunnel and E1 which is perpendicular to the tunnel direction. But, unfortunately, the N83W(SpE2) was different, 90 degrees from the long span strainmeter E2 with N07W. The tidal changes and long changes obtaining by SpE1 components of the short span strainmeter correspond to those of the E1 long span strainmeters. And the strain seismographs of the earthquake with M7.1 2006/04/20 in Koryaka, Russia, the SpE1 and E1 show the clear correspondence in relative amplitude and phase. (author abst.) |
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