CS-L Cesium Vapor Magnetometer Sensor OPERATION ... - Scintrex

Orienting
10° < q < 85° (1)
and from
95° < q < 170° (2)
Equation (1) covers the magnetometer's active zone in the northern operating
hemisphere. This active zone is depicted in Figure 18 on page 7-3. The
measured magnetic field could be anywhere inside the space bound by the northern
polar dead zone cone and the equatorial dead zone "disk".
Note that the polar sensor orientation occurs when the sensor optical axis is
parallel with the ambient magnetic field. In the northern polar orientation the
magnetic field and the sensor optical axis point in the same direction (q=0°),
in the southern polar orientation they point in the opposite directions (q=180°).
The equatorial orientation occurs when the optical axis is perpendicular to the
ambient magnetic field (q=90°).
Equation (2) covers the magnetometer's active zone in the southern operating
hemisphere. This active zone is depicted in Figure 19 on page 7-3. The magnetic
field could be anywhere inside the space bound by the southern polar dead zone and
the equatorial dead zone.
The Earth's magnetic field vector is pointing into the ground in the Earth's
northern magnetic hemisphere, and out from the ground in the Earth's
southern magnetic hemisphere. It is parallel with the ground at the Earth's
magnetic equator. Note, that neither the Earth's geographic and magnetic
poles nor the equators exactly coincide, as it can be seen in figure 4 below.
4—3
Figure 4 - Earth magnetic field inclination angle (degrees)
P/N 763701 Rev. 1