On the possible cause of long period instrumental noise (parasitic mode) of a superconducting gravimeter

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書誌事項

公開日
2005-03-30
権利情報
  • http://www.springer.com/tdm
DOI
  • 10.1007/s00190-005-0434-5
公開者
Springer Science and Business Media LLC

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説明

The long-period instrumental noise (parasitic mode) of a superconducting gravimeter (SG) is investigated using observational data from the SG installed at Matsushiro, Japan. Although the mode emerges as a persistent peak in gravity spectra, the intensity of the peak is found to be variable with time and correlated well with the spectra of the SG’s tilt. Assuming resonant excitation of the parasitic mode by tilt, it is shown that the observed spectra could be consistently interpreted if the mode is a rotational motion of the superconducting sphere. It is unlikely that the existence of the parasitic mode is responsible for the enhanced noise level of the SG in seismic normal mode band.

収録刊行物

  • Journal of Geodesy

    Journal of Geodesy 78 (11-12), 683-690, 2005-03-30

    Springer Science and Business Media LLC

被引用文献 (2)*注記

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