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Open AccessArticle

Calibration and Characterization of a Reduced Form-Factor High Accuracy Three-Axis Teslameter

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Faculty of Engineering, University of Malta, MSD 2080 Msida, Malta
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Faculty of ICT, University of Malta, MSD 2080 Msida, Malta
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Photon Science Division of the Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
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Sentronis ad, 18103 Nis[M1], Serbia
*
Author to whom correspondence should be addressed.
Electronics 2020, 9(1), 151; https://doi.org/10.3390/electronics9010151
Received: 4 December 2019 / Revised: 3 January 2020 / Accepted: 7 January 2020 / Published: 13 January 2020
(This article belongs to the Section Circuit and Signal Processing)
A new reduced form-factor three axes digital teslameter, based on the spinning current technique, has been developed. This instrument will be used to characterize the SwissFEL insertion devices at the Paul Scherrer Institute (PSI) for the ATHOS soft X-ray beamline. A detailed and standardized calibration procedure is critical to optimize the performance of this precision instrument. This paper presents the measurement techniques used for the corrective improvements implemented through non-linearity, temperature offset, temperature sensitivity compensation of the Hall probe and electronics temperature compensation. A detailed quantitative analysis of the reduction in errors on the application of each step of the calibration is presented. The percentage peak error reduction attained through calibration of the instrument for reference fields in the range of ±2 T is registered to drop from 1.94% down to 0.02%. View Full-Text
Keywords: ATHOS soft X-ray beamline; calibration; Hall probe; spinning current technique; three axes digital teslameter ATHOS soft X-ray beamline; calibration; Hall probe; spinning current technique; three axes digital teslameter
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Cassar, J.; Sammut, A.; Sammut, N.; Calvi, M.; Mitrovic, Z.; Popovic, R.S. Calibration and Characterization of a Reduced Form-Factor High Accuracy Three-Axis Teslameter. Electronics 2020, 9, 151.

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