BSI PD IEC/TR 62797:2013
$167.15
International comparison of measurements of the magnetic moment using vibrating sample magnetometers (VSM) and superconducting quantum interference device (SQUID) magnetometers
| Published By | Publication Date | Number of Pages |
| BSI | 2013 | 36 |
This Technical Report provides the results of an international compar ison of measurements of the magnetic moment, using vibrating sample magnetometers (VSM) and superconducting quantum interference device (SQUID) magnetometers.
The basic object of this comparison is to verify the degree of reproducibility of the method employed as a prerequisite for the prospective development of a related IEC measuring standard.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 4 | CONTENTS |
| 6 | FOREWORD |
| 8 | INTRODUCTION |
| 9 | 1 Scope 2 Overview |
| 10 | 3 Samples 3.1 Hard ferrites 3.2 Magnetic tapes 4 Measuring quantities and measuring conditions 4.1 General 4.2 Hard ferrite spheres |
| 11 | 4.3 Magnetic tape samples 4.4 Role of the measuring temperature |
| 12 | 5 Analysis of the measured quantities |
| 14 | Figures Figure 1 – Isotropic and anisotropic ferrites: standard deviations Figure 2 – Magnetic tape samples: standard deviations |
| 15 | Figure 3 – Isotropic and anisotropic ferrites: weighted uncertainties Figure 4 – Magnetic tape samples: weighted uncertainties |
| 16 | Figure 5 – Normalized best values yi/ of the coercive field strength HcJ and maximum energy product (BH)max |
| 17 | Annex A (informative) International comparison of measurements of the magnetic moment using vibrating sample magnetometers and SQUID magnetometers Tables Table A.1 – Magnetic polarization value J800k at Ha = Hpeak = 800 kA/m measuredby the participating laboratories on the isotropic hard ferrite HF-Iso1 |
| 18 | Figure A.1 – Dispersion of the J800k values measured by the participating laboratories on the isotropic ferrite sample HF-Iso1 |
| 19 | Figure A.2 – Dispersion of the Jr values measured by the participating laboratories on the isotropic ferrite sample HF-Iso1 Table A.2 – Remanent magnetic polarization Jr measured by the participating laboratories on the isotropic hard ferrite HF-Iso1 |
| 20 | Figure A.3 – Dispersion of the HcJ values measured by the participating laboratories on the isotropic ferrite sample HF-Iso1 Table A.3 – Coercive field HcJ measured by the participating laboratories on the isotropic hard ferrite HF-Iso1 |
| 21 | Figure A.4 – Dispersion of the HcB values measured by the participating laboratories on the isotropic ferrite sample HF-Iso1 Table A.4 – Coercive field HcB measured by the participating laboratories on the isotropic hard ferrite HF-Iso1 |
| 22 | Figure A.5 – Dispersion of the (BH)max values measured by the participating laboratories on the isotropic ferrite sample HF-Iso1 Table A.5 – Maximum energy product (BH)max measured by the participating laboratories on the isotropic hard ferrite HF- Iso1 |
| 23 | Figure A.6 – Dispersion of the J800k values measured by the participating laboratories on the anisotropic ferrite sample HF-Aniso1 Table A.6 – Magnetic polarization value J800k at Ha = Hpeak = 800 kA/m measured by the participating laboratories on the anisotropic hard ferrite HF-Aniso1 |
| 24 | Figure A.7 – Dispersion of the Jr values measured by the participating laboratories on the anisotropic ferrite sample HF-Aniso1 Table A.7 – Remanent magnetic polarization Jr measured by the participating laboratories on the anisotropic hard ferrite HF-Aniso1 |
| 25 | Figure A.8 – Dispersion of the HcJ values measured by the participating laboratories on the anisotropic ferrite sample HF-Aniso1 Table A.8 – Coercive field HcJ measured by the participating laboratories on the anisotropic hard ferrite HF-Aniso1 |
| 26 | Figure A.9 – Dispersion of the HcB values measured by the participating laboratories on the anisotropic ferrite sample HF-Aniso1 Table A.9 – Coercive field HcB measured by the participating laboratories on the anisotropic hard ferrite HF-Aniso1 |
| 27 | Figure A.10 – Dispersion of the (BH)max values measured by the participating laboratories on the anisotropic ferrite sample HF-Aniso1 Table A.10 – Maximum energy product (BH)max measured by the participating laboratories on the anisotropic hard ferrite HF- Aniso1 |
| 28 | Figure A.11 – Dispersion of the m400k values measured by the participating laboratories on the magnetic tape sample A1 Table A.11 – Magnetic moment m400k measured at at Ha = Hpeak = 400 kA/m by the participating laboratories on the magnetic tape sample 1A |
| 29 | Figure A.12 – Dispersion of the mr values measured by the participating laboratories on the magnetic tape sample A1 Table A.12 – Remanent magnetic moment mr measured by the participating laboratories on the magnetic tape sample 1A |
| 30 | Figure A.13 – Dispersion of the S = mr/m400k values measured by the participating laboratories on the magnetic tape sample A1 Table A.13 – Squareness ratio S = mr/m400k measured by the participatinglaboratories on the magnetic tape sample 1A |
| 31 | Figure A.14 – Dispersion of the HcJ values measured by the participating laboratories on the magnetic tape sample A1 Table A.14 – Coercive field HcJ measured by the participating laboratorieson the magnetic tape sample 1A |
| 32 | Annex B (informative) Participants |
| 33 | Bibliography |
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BSI PD IEC/TR 62797:2013
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