The sensitivity and dynamic range of inertial seismographs

Details The sensitivity and dynamic range of inertial seismographs The sensitivity and dynamic range of inertial seismographs

Feb 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979pepi...18...64m&link_type=abstract

Physics of the Earth and Planetary Interiors, Volume 18, Issue 2, p. 64-70.

Physics

1

Scientific paper

Optimizing the sensitivity and dynamic range of inertial seismographs can best be accomplished by giving consideration to the ambient earth noise spectrum, as related to the periods of the waves to be observed and, by inference, the response band of the seismograph. Seismometer sensitivity is limited by thermal agitation, related to the damping mechanisms, some of which provide the necessary output of information. Earth noise spectrums and seismometer thermal agitation are presented as accelerations per unit bandwith to show their common nature and inseparable evidence in practice. Feedback systems do not alter the fundamental relations but may be advantageous for controlling the instrumental bandwith or where the physical size is restricted. Address: 9612 Highland View Drive, Dallas, TX 75238, U.S.A.

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