自己浮上式海底地震計用の時刻較正装置

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書誌事項

タイトル別名
  • Clock Correction System for the Pop-up Type Ocean Bottom Seismometer
  • ジコ フジョウシキ カイテイ ジシンケイヨウ ノ ジコク カクセイ ソウチ

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抄録

A new clock correction system has been developed for the clock calibration of the ocean bottom seismometer (OBS) before its launching and after its recovery. This system has two standard clocks and one portable time calibrator.<br>One of the standard clocks is synchronized with one of three broadcasted standard time signal waves (2.5, 5.0, 10MHz). Another standard clock uses the oscillation output of a Rb oscillator with a stability about 10-10 per month. The latter can be corrected by the former standard clock when the stability of the Rb oscillator become worse. The portable clock calibrator is synchronized with one of the two standard clocks. This calibrator is able to read the OBS clock and to measure the time difference between the standard clock and the OBS one, and also to send a trigger signal to the OBS clock for the time correction.

収録刊行物

  • 地震　第２輯

    地震　第２輯 36 (4), 635-642, 1983

    公益社団法人 日本地震学会

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