Open AccessDigitization of optical lever instruments
Author(s) -
G. Romeo
Publication year - 2009
Publication title -
annals of geophysics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 60
eISSN - 2037-416X
pISSN - 1593-5213
DOI - 10.4401/ag-3657
Subject(s) - darkroom , digitization , tiltmeter , drum , digital recording , lever , electronics , computer science , electronic instrument , exciter , computer hardware , electrical engineering , telecommunications , optics , engineering , mechanical engineering , physics , amplitude
Some classical old-fashioned instruments (such as the Wood-Anderson seismometers), as well as some modern instruments (like the all-quartz made Verbaandert-Melchior tiltmeters), conventionally require an impractical recording system obtained by a photographic drum recorder in a darkroom. Simple electronic equipment (made by readily available, low cost electronics) may help in using such kind of instruments allowing a useful digital recording. This will reduce the time-hour in data acquisition and storage (and the manual error), and will increase the accuracy. The theory of operations and some results obtained using the described equipment are shown