Bulletin géodésique

, Volume 69, Issue 2, pp 73–80

A calibration system for superconducting gravimeters

Authors

  • Vladimiro Achilli
    • Istituto di TopografiaUniversity of Bologna
  • Paolo Baldi
    • Dipartimento di Fisica-Settore GeofisicaUniversity of Bologna
  • Giuseppe Casula
    • Istituto Nazionale di Geofisica
  • Mario Errani
    • Istituto Nazionale di Geofisica
  • Sergio Focardi
    • Dipartimento di Fisica-Settore GeofisicaUniversity of Bologna
  • Marco Guerzoni
    • Dipartimento di Fisica-Settore GeofisicaUniversity of Bologna
  • Federico Palmonari
    • Dipartimento di Fisica-Settore GeofisicaUniversity of Bologna
  • Giuseppe Raguní
    • Dipartimento di Fisica-Settore GeofisicaUniversity of Bologna
Article

DOI: 10.1007/BF00819553

Cite this article as:
Achilli, V., Baldi, P., Casula, G. et al. Bulletin Géodésique (1995) 69: 73. doi:10.1007/BF00819553

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%.

Copyright information

© Springer-Verlag 1995