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Absolute Gravimeter Comparison Chart
| Meter |
Accuracy |
Precision |
Repeatability |
Temp Range |
DC |
AC |
Outdoor Operation |
|   |
µGal |
µGal/√(Hz) |
µGal |
°C |
  |
  |
  |
| FG-L |
10 | 100 | 10 | 15 to
30 |   | × |   |
| A-10 |
10 | 100 | 10 | -20 to +35 | × | × | × |
| FG-5 |
2 | 10 | 1 | 15 to
30 |   | × |   |
- Note 1: The FG5 accuracy is limited by systematic errors
that in many cases cannot be determined indpendently and are in
some cases based on theoretical estimates. Intercomparisons at
TMGO indicate that different FG5s show 1.5 microGal agreement.
- The FG5 has an accuracy of 5 µGal if the ML-1 laser is
used.
- Note 3: The precision specifications assume a quiet site
such as TMGO.
- Note 4: FG5 and FG5L can be operated outdoors with a
tent and generator.
- Note 5: Repeatability requires measurement on high quality
measurement piers.
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