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Progress in seismological instrumentation
Author(s) -
Smith Stewart W.
Publication year - 1975
Publication title -
reviews of geophysics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 8.087
H-Index - 156
eISSN - 1944-9208
pISSN - 8755-1209
DOI - 10.1029/rg013i003p00311
Subject(s) - instrumentation (computer programming) , gravimeter , borehole , seismometer , geology , seismology , engineering , aerospace engineering , remote sensing , geophysics , geotechnical engineering , computer science , casing , operating system
The period since 1970 has been marked by significant engineering advances in conventional seismic instrumentation as well as some fundamental developments in laser technology with direct application in earth strain measurement and geodesy. In the area of conventional seismic instrumentation the engineering development of borehole long‐period seismographs has made possible the siting of this type of instrumentation independent of the usual requirements for underground vaults. This field has been extensively reviewed by Melton [1975]. The work in long‐period instrument development has led to a better understanding of the fundamental limitations of ground noise at long period [ Fix , 1972]. At very long period the development of a superconducting gravimeter by Prothero and Goodkind [1972] has demonstrated stability over periods of time unattainable with systems utilizing conventional mechanical suspensions.