Abstract
The French scientific community has recently (December 1996) acquired an absolute gravimeter (AG), Micro-g FG5–206. This instrument is based at the Strasbourg gravity station, J9, where superconducting gravimeters (SG), model TT70 replaced in summer 1996 by a compact model C026, are operating since more than 10 years. First we check the instrumental specifications of the FG5 by comparing observations to the specifications given by the manufacturer. Secondly we perform several series of calibrations of the SG by the AG spanned over a time interval of 6 months. We provide results on the stability of the calibration factor in time from different experiments, as well as on the evolution of the factor and its uncertainty according to the duration of each experiment. We conclude that an accuracy of several parts per mill can be achieved in standard conditions.
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© 1998 Springer-Verlag Berlin Heidelberg
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Amalvict, M., Hinderer, J., Francis, O., Mäkinen, J. (1998). Comparisons between Absolute (AG) and Superconducting (SG) Gravimeters. In: Forsberg, R., Feissel, M., Dietrich, R. (eds) Geodesy on the Move. International Association of Geodesy Symposia, vol 119. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-72245-5_4
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DOI: https://doi.org/10.1007/978-3-642-72245-5_4
Publisher Name: Springer, Berlin, Heidelberg
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