Minimizing instrument effects in an ocean bottom seismometer

Auteurs-es

  • D.J. Dodds GeoAcoustics Inc., Aurora, Ont., Canada
  • D.M.F. Chapman
  • J.C. Osler
  • W.C. Risley

Mots-clés :

seismometers, ocean bottom seismometer, sea floor vibration, ambient noise, self noise, transfer function, sea floor motion, 1 to 50 Hz

Résumé

Ocean acousticians have traditionally made measurements of the pressure component of the sound field. Previously initial tests were reported by one of the authors on an existing ocean bottom seismometer (OBS) which uses velocity sensors (geophones). Geophysicists have used OBS instruments primarily to time discrete seismic events. This paper describes a new OBS designed to measure sea floor vibration amplitudes, down to the ambient noise level, in the 1-50 Hz range. The design goal was to minimize both the self noise (an additive effect), and the multiplicative effect of the transfer function which relates sea floor motion to the motion recorded by the OBS

Fichiers supplémentaires

Publié-e

1994-09-01

Comment citer

1.
Dodds D, Chapman D, Osler J, Risley W. Minimizing instrument effects in an ocean bottom seismometer. Canadian Acoustics [Internet]. 1 sept. 1994 [cité 11 mai 2026];22(3):161-2. Disponible à: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/899

Numéro

Vol. 22 No. 3 (1994)

Rubrique

Actes du congrès de la Semaine canadienne d'acoustique

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