Magnetic Field on LCR Gravimeters

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F03%3A03090024" target="_blank" >RIV/68407700:21230/03:03090024 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Magnetic Field on LCR Gravimeters
Original language description
A correct interpretation of the results of very precise relative gravity measurements needs a good knowledge of external disturbing effects on the gravimeters. Among them the effects of the magnetic field sometimes cannot be neglected. Experimental investigations of magnetic effects on the LCR gravimeters No.137, No.176 and No.1068 were carried out at the Geodetic Observatory Pecný. In experiments an artificial magnetic field generated by a Helmholtz coil was used. Relations between the gravimeter records and the magnetic field were determined for both the horizontal and the vertical component of the vector of magnetic induction. An extreme sensitivity to magnetic field changes up to 6 nm s-2/uT was found with the gravimeter LCR G No.137. A significantreduction of this disturbing effect by a factor of 1/30 was achieved by placing the gravimeter into the permalloy cylinder NiFe 79.
Czech name
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Czech description
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Publication year
2003
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
IMG-2002 Instrumentation and Metrology in Gravimetry
ISBN
2-9599804-7-6
ISSN
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e-ISSN
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Number of pages
5
Pages from-to
89-93
Publisher name
O. Francis and T. van Dam
Place of publication
Münsbach Castle
Event location
Münsbach Castle
Event date
Oct 28, 2002
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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