| Project/Area Number |
15340148
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Solid earth and planetary physics
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| Research Institution | Nagoya University |
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Principal Investigator |
YAMADA Isao Nagoya University, Graduate school of environmental studies, Prof., 大学院・環境学研究科, 教授 (60022670)
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| Co-Investigator(Kenkyū-buntansha) |
FUKAO Yoshio Japan agency for marine-earth science and technology, Director of IFREE, 地球内部センター, センター長 (10022708)
ARAYA Akito Tokyo University, Institute of Earthquake, Associate Prof., 地震研究所, 助教授 (30272503)
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| Project Period (FY) |
2003 – 2005
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| Project Status |
Completed (Fiscal Year 2005)
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| Budget Amount *help |
¥16,400,000 (Direct Cost: ¥16,400,000)
Fiscal Year 2005: ¥5,100,000 (Direct Cost: ¥5,100,000)
Fiscal Year 2004: ¥4,700,000 (Direct Cost: ¥4,700,000)
Fiscal Year 2003: ¥6,600,000 (Direct Cost: ¥6,600,000)
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| Keywords | seismometer / laser interferometer / strain seismometer / broad-band seismometer / レーザー干渉計 / 超長周期地震計 / レーザー干渉型歪み計 |
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| Research Abstract |
We developed the strain-seismometer which used a laser interferometer in this project. This year, we did observation with this super long period seismometer and did comparison with a record of quartz pipe strain meter and STS -1 type broad-band seismometer.
As a result it does not extend to performance of a STS -1 type seismometer.
We can get a good record by revising atmospheric pressure and a change of minute temperature in an observation trench. The cause of noise is understood that it was warp of the laser interferometer by around 1/100 deg.temperature change in a trench by observation of temperature by an exact thermometer and observation of atmospheric pressure change by a micro-barometer.
The developed strain seismometer seems to do warp by temperature more greatly, because various kinds of materials are used every a part by difficulty and a price of production. I have to build the system which is not influenced in a temperature change by materials of super iron-nickel alloy with a little temperature changes.
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