The long-period monitoring of the Earth’s gravitational field is best done with low-drift zero-length spring gravimeter such as the gPhoneX Gravity Meter or with absolute gravimeters such as the FG5-X.
- Extended free-fall chamber length
- Improved Electronics
- Improved reliability
- Redesigned drive system
- Built-in collimation optics for verticality alignment
- Drag-free chamber surrounds the free-falling test mass
- Portable standard in Absolute Gravity