WEKO3
アイテム
比抵抗変化計のテレメーターシステム
https://doi.org/10.15083/0000033067
https://doi.org/10.15083/000003306762ef28a2-1227-497e-a8ee-60ae92ee2a96
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
ji0553008.pdf (1.6 MB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2008-05-30 | |||||
| タイトル | ||||||
| タイトル | 比抵抗変化計のテレメーターシステム | |||||
| 言語 | ja | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| 資源タイプ | ||||||
| 資源 | http://purl.org/coar/resource_type/c_6501 | |||||
| タイプ | departmental bulletin paper | |||||
| ID登録 | ||||||
| ID登録 | 10.15083/0000033067 | |||||
| ID登録タイプ | JaLC | |||||
| その他のタイトル | ||||||
| その他のタイトル | A Telemeter System of the Resistivity Variometer | |||||
| 著者 |
山崎, 良雄
× 山崎, 良雄 |
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| 著者別名 | ||||||
| 識別子Scheme | WEKO | |||||
| 識別子 | 128968 | |||||
| 姓名 | Yamazaki, Yoshio | |||||
| 著者所属 | ||||||
| 著者所属 | 地震研究所 | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | A continuous high sensitivity observation of apparent ground resistivity was first started at the Aburatsubo Crustal Movement Observatory (139°37'E, 35°09'N), Kanagawa Prefecture, about 60 km south of Tokyo on May 14, 1968. The initial intention was to observe the crustal movement reflected on the resistivity variation. The initial resistivity observation system consisted of the following sections : 1) four graphite electrodes buried in the floor ground of a small vault near the shoreline of the Aburatsubo Bay, with 1.6 m distance in N81°W direction, 2) a 67 Hz type resistivity variometer and 3) two sets of aerial cables which connect the electrodes and the resistivity variometer. The apparent resistivity change in response to the tidal loading of the ground has been continuously recorded with a sensitivity as high as 102 compared with the earth'strain at Aburatsubo. Unexpectedly, on every occurrence of the remarkable earthquakes in the vicinity of Japan, the resistivity variation has been observed. Up to the present, the author observed 50 remarkable coseismic resistivity changes most of which are accompanied by the precursory resistivity change the order of hours preceding to the respective earth- quakes. From September 2, 1978, the prototype vacuum tube apparatus was replaced by an IC type two component resistivity variometer which is capable of a future coupling with a telemeter system without interfering with observation under continuous operation. On February 14, 1980, real time continuous telemetering of the resistivity variation to the author's laboratory at the Earthquake Research Institute was started through D1 service line of Nippon Telephone and Telegram Agency (NTT) The telemeter system is a low-speed, 50 bits/sec, one-way, PCM telemeter equipment with four 8 bits channels. The first telemetered coseismic resistivity change at Aburatsubo was of an earth- quake of magnitude 5.9 on March, 1980. The agreement of the directly recorded resistivity change at Aburatsubo and the telemetered record at the Earthquake Research Institute is quite satisfactory. The coseismic resistivity change for the earthquake of magnitude 6.7 on June 29, 1980 is also shown at Aburatsubo. | |||||
| 書誌情報 |
東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo 巻 55, 号 3, p. 737-754, 発行日 1981-03-07 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 00408972 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AN00162258 | |||||
| フォーマット | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | application/pdf | |||||
| 日本十進分類法 | ||||||
| 主題Scheme | NDC | |||||
| 主題 | 453 | |||||
| 出版者 | ||||||
| 出版者 | 東京大学地震研究所 | |||||
| 出版者別名 | ||||||
| Earthquake Research Institute, University of Tokyo | ||||||
