Abstract
A new method for the calibration of a superconducting gravity meter is described, in which a 273 Kg annular mass is placed around the meter and is moved up and down. The geometry of the apparatus is easy to model and the accuracy in the computation of the gravity variation induced by the mass, 6.7µgal, is limited only by the accuracy in the knowledge of value of the gravitational constant. Measurements done in ‘91 and ‘92 for the calibration of the instrument GWR-T015 are described. The calibration factor has been determined with a precision of about 0.3%.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Achilli V, Baldi P, De Sabata V, Focardi S, Palmonari F, Pedrielli F, (1990) A measurement of the gravitational constant G in the 10-100 range distance. Frontiers in Particle Physics, Proceedings of the XII Warsaw Symposium on Elementary Particle Physics, Warsaw, Poland. Ed. Z. Ajduk et al, Word Scientific, pp 589–594.
Achilli V, Baldi P, Focardi S, Gasperini P, Palmonari F, Sabadini R (1991) The Brasimone experiment: a measurement of the Gravitational constant G in the 10–100 m range of distance. Proceedings of the Workshop: Non Tidal Gravity Changes. Walferdange, Luxemburg. Cahiers du Centre Europèen de Gèodynamique et de Sèismologie, vol 3, pp 241–246.
Barta G, Hajosy A, Varga P (1985) Possibilities for the Absolute Calibration of Recording Gravimeters. Proceedings of the Tenth International Symposium on Earth Tides, Madrid, Spain, pp 27–34.
Goodkind JM (1991) The superconducting gravimeters: principle of operation, current performance and future prospects. Proceedings of the Workshop: Non Tidal Gravity Changes. Walferdange, Luxemburg. Cahiers du Centre Europèen de Gèodynamique et de Sèismologie, vol 3, pp 81–90.
Hinderer J, Florsch N, Machinen J, Legros H, and Faller JE (1991) On calibration of a superconducting gravimeter using absolute gravity measurements. Geophys. J. Int. 106:491–497.
Varga P, Csapò G, Groten E, Becker M (1991) Laboratory calibration of LCP type gravimeters. Scientific Meeting GM 3, 20th General Assembly of IUGG/IAG, Vienna, Austria.
Warburton R (1993) Private communication.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Achilli, V., Baldi, P., Casula, G. et al. A calibration system for superconducting gravimeters. Bulletin Géodésique 69, 73–80 (1995). https://doi.org/10.1007/BF00819553
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00819553