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.
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Recognized standard for measuring gravity. The FG5-X system uses the well established free-fall technique of measuring gravity. Featuring:
- 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
The Micro-g LaCoste gPhoneX gravity meter uses the Zero-Length Spring™ sensor technology to provide microGal repeatability with very low static drift, which makes it the best suited as a monitoring meter. Whether you are interested in earthquake or volcanic studies, earth tide or reservoir monitoring, the gPhoneX will out perform all others. The gPhoneX can also be used as an ultra sensitive low frequency seismometer for these areas of studies.