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Fig. 6 | Earth, Planets and Space

Fig. 6

From: Uncertainty in hourly mean data from classical magnetometers

Fig. 6

Representation of the principle of measurement of horizontal intensity H with QHM. The thick red arrows show the positions of the magnet. The angles β between the directions of the magnet and the theodolite directions, A readings, were caused by collimation. The small angle, , was caused by the torsion of the suspending fiber

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