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Space Magnetometers

Space Magnetometers. Main task Development, calibration and operation of spaceborne magnetometers Main research topics Building and test of space magnetometers Integration and test of BepiColombo magnetometers ASIC based fluxgate magnetometer for NASA’s MMS mission

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Space Magnetometers

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  1. Space Magnetometers Main task • Development, calibration and operation of spaceborne magnetometers Main research topics • Building and test of space magnetometers • Integration and test of BepiColombo magnetometers • ASIC based fluxgate magnetometer for NASA’s MMS mission • Development of new space magnetometers • New absolute scalar (optical) magnetometer • Miniaturized sensor system for space weather monitoring Refereed publications (since Jan 2013) • Total: 1 Educational activities (since Jan 2013) • Teaching at Graz University of Technology and University of Applied Sciences Wiener Neustadt • PhD thesis: 1 (A. Pollinger) IWF/ÖAW

  2. Who are we? Lead: Werner Magnes Members • Staff: Ö. Aydogar, G. Berghofer, C. Hagen, I. Jernej, S. Leitner, A. Pollinger, A. Valavanoglou • PhD Student: D. Fischer Cooperation within IWF • Preparation of data processing for MMS & BepiColombo; proposal writing for future missions (Nakamura et al.) • Exchange of know-how with all instrument developers Key external collaboration – international / national Germany: TU Braunschweig; USA: Univ. California Los Angeles; UK: Imperial College London; Japan: Institute of Space and Astronautical Science; China: Center for Space Science and Applied Research / Graz University of Technology IWF/ÖAW

  3. Missions IWF/ÖAW

  4. MMS - Digital Fluxgate Magnetometer • Complete active readout electronics • for a fluxgate sensor on 4x5 mm2of silicon with 350 nm structures (manufactured by AMS near Graz) • Miniaturization • Improved radiation hardness • Power reduction • Competitive performance • ASIC is used for magnetometer aboard MMS (DFG) • DFG sensors supplied by UCLA • Flight Model 4 delivered • Flight Spare ready for delivery DFG electronics integrated in Central Electronics IWF/ÖAW

  5. BepiColombo - MERMAG • MERMAG-P jointly developed with TU Braunschweig and Imperial College London • Flight Model delivered in 2013, Spare Model under assembly • MagLab activities: • Technical Management • Design and development of Instrument Controller Unit • Integration and test of MERMAG-P • Challenging development of Instrument Controller Unit due to column grid array package of processor chip Flight Model of MERMAG-P Flight Model of Instrument Controller Unit IWF/ÖAW

  6. New Scalar Magnetometer Measurement of field magnitude with high absolute accuracy by radiating a multi-chromatic laser field through a glass cell filled with Rb atoms • Development of a Qualification Model under an ESA contract • Development of an Engineering Model for the CSES mission 2014 – Qualification Model (a) Mixed signal electronics with microwave and control subunits, (b) Laser unit, (c) Sensor unit, (d) Inbound and outbound fibers, (e) Thermal control cable Calibration measurements in Magnetsrode (TUBS) IWF/ÖAW

  7. Service Oriented S/C Magnetometer • Space Weather monitoring through magnetic field measurements aboard a • magnetically disturbed spacecraft • Two boom mounted fluxgate sensors and two S/C sensors, which can be accommodated at selected positions inside the spacecraft for separating and removing of S/C interference fields • Development of Engineering and Qualification Model jointly with Magson/Berlin, TU-BS, and Imperial College • MagLab activities: • Development of miniaturized S/C sensor system • Range: ±65,000 nT • Noise: <100pT/√Hz • Abs. Accuracy: ±50 nT • Multi sensor processing and data cleaning methods Miniaturized 3D magnetic field sensor based on Anisotropic Magneto-Resistance sensing elements IWF/ÖAW

  8. Future Plans: 2015-2018 • BepiColombo • Completion and delivery of Spare Model • Support of system level testing and near Earth commissioning Magnetospheric Multiscale • Preparation/planning of data processing together Nakamura et al. • Near Earth commissioning and in-flight calibration Scalar Magnetometer • Qualification and Flight Model for Chinese CSES mission • Breadboard Model for JUICE SOSMAG (planned activity) • Development of a Flight Model for a hosted payload mission by ESA Interhelios(planned activity) • Instrument design and development of test electronics for Russian Sun observer mission IWF/ÖAW

  9. Thank you IWF/ÖAW

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