At the Niemegk observatory, two different types of absolute measuring magnetometers were developed and built. One of them should replace the D/I-flux; it performs absolute component measurements at defined times (GAUSS). In this paper we describe an instrument which delivers every second a complete set of the Earth magnetic components in near absolute quality. It consists of a very fast Cs, Cs-He tandem magnetometer and a two dimensional coil-system and wil be equipped with an optical system for the direction definition.

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Pulz, E.; Jäckel, K.-H.; Bronkalla, O. (2008): A Quasi Absolute Optically Pumped Magnetometer for the Permanent Recording of the Earth's Magnetic Field Vector. Journal of Electrical Engineering - Elektrotechnicky Casopis, 59, 8/s, 3-6.