Vector Measurements And Conventions - Bartington Mag648 Operation Manual

The Mag649 offers a wider bandwidth than the standard Mag648.
High stability circuitry ensures that a minimum of ten years' service should be expected.

3.1. Vector Measurements and Conventions

Each magnetometer produces three independent analogue output voltages in response to the
magnitude and direction of the orthogonal components of a magnetic field. A "right-hand" co-
ordinate system is adopted (see figure 1). In this system the X, Y and Z axis correspond to the
thumb, first and second finger respectively of the right hand. By convention, the magnetometer
should be installed so that the X axis is arranged to point North, the Y axis to point East and the Z
axis to point down.
1st Finger
North
Thumb
BARTINGTON INSTRUMENTS
East
+Y
+X
Figure 1. The 'right hand' rule.
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Down
+Z
2nd Finger
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