Temperature drifts of the magnetometer can be measured in a special insulated box with heating elements and control electronics. The software controls this operation with predefined parameters and displays the drifts as difference to the observatory recording. Recently, the laboratory was complemented with a magnetic cleanliness measuring system and a demagnetising system. Especially those who make instruments or components for scientific satellites need information about the magnetic cleanliness. Those satellites usually measure the magnetic field in space, among other things.
Software fits a one-dipole model to the data.
Two different coils exist for demagnetising. The high frequency coil is wound around a cylinder with 30 cm diameter and its 50 Hz current is controlled with a voltage transformer. Another system consists of two one-meter square coils 90 cm apart.