Effect of off-axis H-coil sensitivity on clockwise-anticlockwise differences of rotational power loss in isotropic samples

Zurek, Stan 2018. Effect of off-axis H-coil sensitivity on clockwise-anticlockwise differences of rotational power loss in isotropic samples. IET Science Measurement and Technology 12 (4) , pp. 507-513. 10.1049/iet-smt.2017.0385

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Abstract

Wire wound H-coils used for rotational measurements are not completely immune to off-axis components of magnetic field strength H. As a result, such components are capable of introducing the significant difference between the rotational power loss measured in the clockwise (CW) or anticlockwise (ACW) direction of rotation. These measurement errors do not influence the average value, and they are distinctly different from the errors caused by the angular misalignment of the sensors in the field metric method. As demonstrated in this study even ideal angular positioning of the H-coils could still produce CW-ACW differences at the level of ±15% at lower flux density and ±30% close to saturation.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Engineering
Publisher:	IET
ISSN:	1751-8822
Date of Acceptance:	7 February 2018
Last Modified:	22 Jul 2019 12:38
URI:	https://orca.cardiff.ac.uk/id/eprint/120439

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