Modeling and error analysis of a superconducting gravity gradiometer
Abstract
The feasibility of a cryogenic gravity gradiometer is demonstrated. A pair of superconducting accelerometers were constructed and tested in a push pull arrangement. The resolution of the experimental unit is estimated to be about 50 E. A study to model the responses of the gravity gradiometer to the various external inputs is conducted. The mathematical equations derived are used in the design of the loaded diaphragm proof mass. The error sources of the gravity gradiometer are identified. The theory of electronic damping for the cryogenic device is developed. An experimental circuit for the noiseless damping of a single accelerometer is described.
 Publication:

Ph.D. Thesis
 Pub Date:
 February 1979
 Bibcode:
 1979PhDT........55W
 Keywords:

 Error Analysis;
 Gravity Gradiometers;
 Mathematical Models;
 Superconductors;
 Accelerometers;
 Cryogenic Equipment;
 Damping;
 Design Analysis;
 Radiometers;
 Instrumentation and Photography