Journal article
Accurate 3-axis measurement of inhomogeneous magnetic fields
- Popovic Renella, Dragana SENIS AG, Baar, Switzerland, www.senis.ch, info@senis.ch
- Spasic, Sasa SENIS AG, Baar, Switzerland, www.senis.ch, info@senis.ch
- Ughini, Remo SENIS AG, Baar, Switzerland, www.senis.ch, info@senis.ch
- Popovic, Radivoje S. EPFL, Swiss Federal Institute of Technology Lausanne, Lausanne, Switzerland
Published in:
- tm - Technisches Messen. - Walter de Gruyter GmbH. - 2019, vol. 86, no. 10, p. 599-608
English
Abstract Hall effect based Teslameters/Gaussmeters measure DC and AC magnetic flux densities in the range from a few µT to about 30 T. For accurate measurement a 3-axis Hall probe is applied with small magnetic field sensitive volume (MFSV) of 100 µm × 10 µm × 100 µm, with vertical and horizontal Hall elements integrated on a single chip. The planar Hall effect, that produces additional measurement errors is suppressed by the spinning current technique. The orthogonality error of the 3-axis Hall probe is reduced to smaller than 0.1° by the described calibration procedure. This paper explains why the above features are crucial for some applications in industry and modern science for accurate measurement of inhomogeneous magnetic fields and how to achieve them. The future technology trends in magnetic metrology are introduced and the newly developed Nanomapper that incorporates a 3-axis Hall probe with a MFSV of smaller than 10×10×10 micrometer is presented.
- Language
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- English
- Open access status
- closed
- Identifiers
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- DOI 10.1515/teme-2018-0082
- ISSN 2196-7113
- Persistent URL
- https://susi.usi.ch/global/documents/72724
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