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Table 1 Basic parameters of MGF for Arase (ERG)

From: The ARASE (ERG) magnetic field investigation

Data sampling Dynamic range (nT) ± 8000 nT/± 60,000 nT
Digital resolution (pT) 15/114 (20 bits)
Original sampling frequency (Hz) 256
Accuracy (RT) Sensitivity < 0.06% (± 8000 nT range)
< 0.10% (± 60,000 nT range)
Orthogonality (°) < 0.1
Accuracy (− 20 to 30 °C) Sensitivity change from RT 0.016% (± 8000 nT range)
Offset (nT) < 2nT (± 8000 nT range)
Weight Sensor (g) 120
Electronics (g) 2780
Dimension Sensor (mm) 71 × 58 × 41H
Electronics (mm) 334 × 121 × 203H
Power consumption + 3.3 V 932 mA (nominal)
+ 7 V 357 mA (nominal)
− 7 V 130 mA (nominal)