Outline of New Cabled Observation System off Toyohashi
Outline of New Cabled Observation System off Toyohashi
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丰桥近海新有线观测系统概要
DOI：
10.1109/ut.2007.370955
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发表时间：
2007
期刊：
影响因子：
--
通讯作者：
K. Mitsuzawa
中科院分区：
文献类型：
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作者：
K. Asakawa;T. Yokobiki;T. Goto;E. Araki;M. Kinoshita;K. Mitsuzawa
日本中部丰桥海岸附近的一个新的有线观测系统目前正在开发中。该系统使用了两根约 60 公里长的前水下光通信电缆。作者将同时以两种方式使用电缆。一是在电缆末端建造一个新的天文台。包括宽带地震计、精确水压传感器和电磁计在内的水下传感器将使用水下可配合连接器连接到接线单元。另一种是使用同一根电缆同时作为长发射天线来监测地壳的电磁特性。我们开发了一种新的时间同步系统。它为水下传感器提供精确的 1PPS 信号、时钟和 NMEA 数据。在本文中，我们将描述该系统的概要。长期监测将于今年4月开始。
A new cabled observation system off the coast of Toyohashi in central Japan is now being developed. The system uses a couple of former underwater optical telecommunication cables of about 60 kilo-meters long. The authors will use the cable in two ways simultaneously. One is to build a new observatory at the end of the cable. Underwater sensors including a broadband seismometer, a precise water-pressure sensor and an electro-magnetometer will be connected to the junction unit using underwater mateable connectors. The other is to use the same cable simultaneously as a long emitting antenna to monitor the electro-magnetic property of the earth crust. We have developed a new time synchronization system. It provides precise 1PPS signal, clock and NMEA data to underwater sensors. In this paper, we will describe the outline of the system. The longterm monitoring will start in this April.