Superconducting gravimeter
Abstract
The superconducting gravimeter was developed and applied to field measurements. The stability of the instrument yielded the highest precision measurements of the Earth tides ever attained. It revealed unprecedented details about the effect of the atmosphere on gravity. Secular variations in gravity and the stability of the instruments were measured by comparing records from co-located instruments. These efforts have resulted in substantial reductions in the noise level at very low frequencies so that the peak differences between two instruments at the same location can be reduced to 0.1 micron gal.
- Publication:
-
California Univ., San Diego Report
- Pub Date:
- November 1982
- Bibcode:
- 1982ucsd.rept.....G
- Keywords:
-
- Atmospheric Pressure;
- Earth Tides;
- Gravimeters;
- Pressure Effects;
- Superconductors;
- Background Noise;
- Data Correlation;
- Drift (Instrumentation);
- Gas Pressure;
- Low Frequencies;
- Temperature Dependence;
- Instrumentation and Photography