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Arrangement of Braunbek coils for compensation of the three components of the Earth's magnetic field


Working Group 2.51

Field measurements and magnetic materials:

H. Harcken: "Die Erfassung von Beobachtungsdaten anhand der Erdmagnetfeldmessung in der PTB und Aspekte von Systemstandards, Sicherheit, Nachhaltigkeit und Qualitätssicherung" [online] Braunschweig, Physikalisch-Technische Bundesanstalt, 2021. PTB-Laborbericht.
Opens external link in new windowhttps://doi.org/10.7795/130.20210901

Robert Hiergeist, Rainer Ketzler, Hans Harcken, Joachim Lüdke, Martin Albrecht, Thomas Brand, Andreas Fischer:
A novel test ground for the equipment qualification of magnetic gradient sensors used for unexploded bomb detection
Journal of Applied Geophysics 112 (2015) 242-248, http://dx.doi.org/10.1016/j.jappgeo.2014.12.003

Zikmund, A., Ripka, P., Ketzler, R., Harcken, H., Albrecht, M.:
Precise Scalar Calibration of a Tri-axial Braunbek Coil System
IEEE Transactions on Magnetics, Vol. 51, Issue 1 Part 1, http://dx.doi.org/10.1109/TMAG.2014.2357783

H. Harcken, J. Lüdke:
Phasendifferenzanalyse in der Magnetkraftmikroskopie
PTB Braunschweig Technology Transfer Offer G01N G12B

R. Hiergeist, J. Lüdke, R. Ketzler, M. Albrecht, and G. Ross:
A Novel Compensated Coil System with High Homogeneity and Low Strayfields
Proceedings of the 1st. International Workshop on Magnetic Particle Imaging, IWMPI, Lübeck, March 18-19 2010, Germany

P. Y. Zhang, R. Hiergeist, J. Lüdke, M. Albrecht, and H. L. Ge:
Magnetization reversal behavior in high coercivity Zr doped Fe/Nd2Fe14B nanocomposite alloys
J. Appl. Phys. 108 (2010) 043905, http://dx.doi.org/10.1063/1.3457105

Harcken, H., Ketzler, R., Albrecht, M., Burghoff, M., Hartwig, S., Trahms, L.:
The natural line width of low field nuclear magnetic resonance spectra
Journal of Magnetic Resonance 206 (2010) pp. 168-170, http://dx.doi.org/10.1016/j.jmr.2010.06.008
Abstract in german: click here

Weyand, K.:
Compensation of the temperature coefficient of magnetic field coils
IEEE I-M 54, 2, pp 713-717, April 2005

Kupec, J., Ahlers, H., Belliss, J., Bryant, S.,Fiorillo, F., Khorev, V., Kohout, V., Rocchino, L., Shifrin, V., and Weyand, K.:
EUROMET Project No. 597: Comparison of magnetic flux by means of a coil transfer standard
Metrologia 40 No 1A (Technical Supplement 2003) 01006

Weyand, K., Lüdke, J., Ahlers, H.:
Error analysis of energy absorption based NMR-magnetometer
Measurements Digest CPEM 2004, London

Weyand, K.:
Maintenance and Dissemination of the Magnetic Field Unit at PTB
IEEE I-M, 50, 2, pp 470-473, April 2001

Weyand, K., et al.:
Intercomparison of Magnetic Flux Density by means of Field Coil Transfer Standard
Metrologia, Vol.38, 3, 2001

Lüdke, J. and Ahlers, H.:
Hybrid control used to obtain sinusoidal curve form for the power loss measurement on magnetic materials
Trans Tech Publications Ltd. Vol. Materials Science Forum 2001

Sievert, J., Ahlers, H., Brosin, P., Cundeva, M. and Luedke, J.:
Relationship of Epstein to SST Results for Grain-Oriented Steel
in: P. Di Barba, A.Savini (editors): Non-Linear Electromagnetic Systems, Studies in Applied Electromagnetics and Mechanics,  Vol. 18, IOS Press, Amsterdam, Netherlands, pp. 3-6, 2000

Ahlers, H. and Luedke, J.:
The uncertainty of magnetic properties measurements of electrical sheet steel
J. Magn. Magn. Mater. 215-216, pp. 711-713, 2000

Ahlers, H.:
Design of transversal earth magnetic field compensating coil systems and their comparison with conventional systems
PTB-Mitteilungen 109, pp. 131-137, 1999

Ahlers, H., Lüdke, J. and Sievert, J.:
Precision determination of the Coercivity of high permeability material
J. Magn. Magn. Mat. Vol. 160, pp. 187-188, 1996

Ahlers, H.:
Precision calibration procedure for magnetic loss testers using a digital two-channel function generator
J.Magn. Magn. Mater. Vol.133, pp. 437-439, 1994

Weyand, K.:
An NMR Marginal Oscillator for Measuring Magnetic Fields below 50 mT
IEEE - Trans. IM-38,2, pp. 410-414, 1989

Weyand, K.:
Ein neues Verfahren zur Bestimmung des gyromagnetischen Koeffizienten des Protons
PTB - Bericht E-26, 81 Seiten, 1984

Capptuller, H. and Ahlers, H.:
Digital sampling measuring device for determining ac-Properties of electrical sheet steel
Proc.Intern. Colloq.Electronique Mesure, Paris, pp. 607-614, 1975

Magnetic media, Reference materials:

Albrecht, M. and Harcken, H.:
Reference materials RM 7811-2 for identification cards with low coercivity magnetic stripes and RM 7811-6 for identification cards with high coercivity magnetic stripes
PTB-E-91 (2007)

Albrecht, M. and Harcken, H.:
Reference material RM 7811-7 for identification cards with high coercivity high density magnetic stripes
PTB-E-84 (2003)

Harcken, H.:
PTB-Mess-System für Magnetstreifen auf ID-Karten und dünnen biegsamen Karten - Handbuch zur Bedienung, Beschreibung der Steuerung und Messdatenauswertung für Software-Version MASTER IV
PTB-2-2.24-2003-1 (2003)

Harcken, H., Albrecht, M. and Ahlers, H.:
A Method for the efficient Determination of the Remanent Magnetization Curve of Magnetic Stripes
International Journal of Applied Electromagnetics and Mechanics 11 (2000) 203-209 IOS Press

Harcken, H. and Albrecht, M.:
PTB-Meßsystem für Magnetstreifen auf ID-Karten und dünnen biegsamen Karten - Handbuch zur Bedienung, Beschreibung der Steuerung und Meßdatenauswertung
PTB Laborbericht PTB-2.24-98-1 (1998)

Albrecht, M. and Harcken, H.:
Development of reference material RM 7811-6 for high coercivity magnetic stripes
PTB Bericht PTB-MA-49 (1996) - ISBN 3-89429-786-7

Albrecht, M.:
Reference material RM 7811-6 for identification cards with high coercivity magnetic stripes
PTB Bericht PTB-MA-41 (1995) - ISBN 3-89429-656-9

Standards and norms:

ISO/IEC 7811-2
Identification cards - Recording technique - Part 2: Magnetic stripe

ISO/IEC 7811-6
Identification cards - Recording technique - Part 6: Magnetic stripe - High coercivity

ISO/IEC 7811-7
Identification cards - Recording technique - Part 7: Magnetic stripe - High coercivity high density

ISO/IEC 7810
Identification cards - Physical characteristics

ISO/IEC 7813
Identification cards - Financial transaction cards

ISO/IEC 10 373-1
Identification cards - Test methods - Part 1: General characteristics

ISO/IEC 10 373-2
Identification cards - Test methods - Part 2: Cards with magnetic stripes

ISO/IEC 15457-1, Identification cards - Thin flexible cards - Part 1: Physical characteristics

ISO/IEC 15457-2, Identification cards - Thin flexible cards - Part 2: Magnetic recording techniques

ISO/IEC 15457-3, Identification cards - Thin flexible cards - Part 3: Test methods