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永年変化観測用超低速記録計の開発
https://doi.org/10.15083/0000033090
https://doi.org/10.15083/0000033090c4cb0b5d-ad99-40d0-96e9-023a72106f8d
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
ji0551011.pdf (1.2 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 | 永年変化観測用超低速記録計の開発 | |||||
| 言語 | ja | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | departmental bulletin paper | |||||
| ID登録 | ||||||
| ID登録 | 10.15083/0000033090 | |||||
| ID登録タイプ | JaLC | |||||
| その他のタイトル | ||||||
| その他のタイトル | Development of an Ultra-Low Speed Recorder for Secular Variations | |||||
| 著者 |
岡田, 義光
× 岡田, 義光× 平田, 安広× 高橋, 辰利 |
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| 著者別名 | ||||||
| 識別子Scheme | WEKO | |||||
| 識別子 | 129053 | |||||
| 姓名 | Okada, Yoshimitsu | |||||
| 著者別名 | ||||||
| 識別子Scheme | WEKO | |||||
| 識別子 | 129054 | |||||
| 姓名 | Hirata, Yasuhiro | |||||
| 著者別名 | ||||||
| 識別子Scheme | WEKO | |||||
| 識別子 | 129055 | |||||
| 姓名 | Takahashi, Tatsutoshi | |||||
| 著者所属 | ||||||
| 値 | 地震研究所 | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Typical recorders commonly used now in Japan to record low speed phenomena have chart speeds of several centimeters per hour. These chart speeds are convenient to see daily variations such as earth tides, but are not adequate for the purpose of glancing the variations of longer periods. In order to see directly the secular variations of very slowly progressing phenomena such as crustal movements, a recording system which has ultra-low chart speed (several cm/month) and ultra-low frequency characteristics was developed. The method adopted here is to plot the sum of the data which was sampled in the past 24 hours, while the recorder is driven intermittently. The features of this system are as follows: (1) Owing to its ultra-low chart speed, we can directly see the progress of the phenomena within a few days or a few months. This may offer useful information for the short period earthquake prediction. (2) Owing to its ultra-low frequency characteristics, we can pick up the signals which are buried in daily disturbances of large amplitudes. (3) Owing to the durability of the recording chart, we can be free from frequent maintenance of the system. (4) As the system is constructed by use of a microprocessor, we will be easily able to correspond to future demands such as improvement of the data-smoothing algorithm. | |||||
| 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 1, p. 225-240, 発行日 1980-08-25 |
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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 | ||||||
| 値 | Earthquake Research Institute, University of Tokyo | |||||
