Gravity Sensors
iGRAV - GWR (GWR Instruments, Inc.)
Superconducting persistent currents (i) produce the most stable relative gravity meter in existence. Superconducting persistent currents (i) produce the most stable relative gravity meter in existence. Super stable: Drift less than 0.5 µGal/month Scale factor constant to better than 1 part in 104 for years! Super precise: 1 nanoGal (10-3 µGal) in frequency domain 0.05 µGal in the time domain for 1 minute averaging. Super low noise: 0.3 µGal/(Hz)½.