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Shipboard Fluxgate Magnetometer |
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Download Datasheet: |
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In marine geomagnetic survey
tugged magnetometers are usually used. Sometimes, for
instance in the arctic sea, the use of tugged equipment
is not possible. Alternatively the measurement can be
done by shipboard magnetometers. To conclude from the magnetic field values measured in the ship's co-ordinate system to the geomagnetic field values, the position of the ship (course angle, pitch angle, roll angle) has to be known for each measured vector. This information can be provided by the navigation system of the ship. Furthermore a correction matrix is needed to eliminate the permanent and induced magnetic influence of the ship. This correction matrix can be determined by a own field conditions. |
 Magnetometer in marine suitable box |
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| Magson has developed a magnetometer system especially for these measurement conditions. Sensor and electronics are located together in a water proof thermally isolated tube. Power connector and serial link are the only interface. The measurement can be synchronized with the onboard data acquisition system. First tests on the RV Polarstern show that this method is a suitable approach for geomagnetic measurements. The corrected data reached a relative accuracy of 10nT. |
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Technical Data |
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