| タイトル | Generation and dissemination of time and frequency standard: Applied researches in T&F fields. The detection of gravitational red shift by transportation of atomic clocks |
| その他のタイトル | 時間・周波数標準の発生と供給:関連研究成果.原子時計運搬による重力赤方偏移の検出 |
| 著者（日） | 小竹 昇; 清水 義行; 今村 國康; 金子 明弘; 栗原 則幸; 細川 瑞彦 |
| 著者（英） | Kotake, Noboru; Shimizu, Yoshiyuki; Imamura, Kuniyasu; Kaneko, Akihiro; Kurihara, Noriyuki; Hosokawa, Mizuhiko |
| 著者所属（日） | 情報通信研究機構 電磁波計測部門 日本標準時グループ; 情報通信研究機構 電磁波計測部門 日本標準時グループ; 情報通信研究機構 電磁波計測部門 日本標準時グループ; 情報通信研究機構 電磁波計測部門; 情報通信研究機構 電磁波計測部門 日本標準時グループ; 情報通信研究機構 電磁波計測部門 原子周波数標準グループ |
| 著者所属（英） | National Institute of Information and Communications Technology Japan Standard Time Group, Applied Research and Standards Division; National Institute of Information and Communications Technology Japan Standard Time Group, Applied Research and Standards Division; National Institute of Information and Communications Technology Japan Standard Time Group, Applied Research and Standards Division; National Institute of Information and Communications Technology Applied Research and Standards Division; National Institute of Information and Communications Technology Japan Standard Time Group, Applied Research and Standards Division; National Institute of Information and Communications Technology Atomic Frequency Standards Group, Applied Research and Standards Division |
| 発行日 | 2004-05-31 |
| 発行機関など | National Institute of Information and Communications Technology
情報通信研究機構 |
| 刊行物名 | Journal of the National Institute of Information and Communications Technology
情報通信研究機構英文論文集 |
| 巻 | 50 |
| 号 | 1-2 |
| 開始ページ | 211 |
| 終了ページ | 219 |
| 刊行年月日 | 2004-05-31 |
| 言語 | eng |
| 抄録 | According to the theory of general relativity, the proper frequency of the clocks in lower altitude becomes lower than that in higher altitude, because of the effect of gravity. This phenomenon is called as gravitational red shift. Some Cesium clocks have been transported from CRL Tokyo headquarters to two LF frequency standard stations, Mt. Ootakadoya and Mt. Hagane. The altitudes between the headquarters and the stations differ by several hundred meters. The frequencies of the clocks before and after the transportation were measured. Averages of the observed shifts for these two stations are about + 7.7 x 10(exp -14) and + 13.0 x 10(exp -14), respectively, which show the good agreement with the theoretically expected shifts of + 7.8 x 10(exp -14) and + 9.0 x 10(exp -14), respectively. |
| キーワード | frequency measurement; frequency standard; gravitational red shift; atomic clock; cesium; relativistic effect; GPS; transportation; 周波数測定; 周波数標準; 重力赤方偏移; 原子時計; セシウム; 相対論的効果; GPS; 輸送 |
| 資料種別 | Technical Report |
| ISSN | 1349-3205 |
| SHI-NO | AA0047117022 |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/37600 |
