Research Article
Optimal Calibration Method of PIGA’s Orthogonal Poses for Gravity Field Testing
Table 7
Simulation results of two different sequency calibration schemes for 22-position test after compensation with the angle error.
| | Error coefficient | Calibration result | Absolute error | Uncertainty | | Equal angle | Equal acceleration | Equal angle | Equal acceleration | Equal angle | Equal acceleration |
| | (rad/s) | 4.004 × 10−4 | 3.998 × 10−4 | 4.0 × 10−7 | 2.0 × 10−7 | 4.4 × 10−7 | 4.0 × 10−7 | | (rad/s/g) | 0.5500011 | 0.5500008 | 1.1 × 10−6 | 8.0 × 10−7 | 1.8 × 10−6 | 1.6 × 10−6 | | (rad/s/g2) | 4.9 × 10−6 | 5.5 × 10−6 | 1.0 × 10−7 | 5.0 × 10−7 | 3.5 × 10−7 | 8.7 × 10−7 | | (rad/s/g2) | 3.5 × 10−6 | 3.9 × 10−6 | 5.0 × 10−7 | 9.0 × 10−7 | 7.1 × 10−7 | 7.5 × 10−7 | | (/g) | 4.1 × 10−6 | 1.6 × 10−6 | 1.1 × 10−6 | 1.4 × 10−6 | 7.1 × 10−7 | 1.0 × 10−6 |
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