Calibration of Sensing Coils of a Three-Dimensional Magnetic Property Tester

Author

Guo, Youguang ; Zhu, Jianguo ; Lin, Zhiwei ; Zhong, Jinjiang ; Lu, Haiwei ; Wang, Shuhong

Author_Institution

Fac. of Eng., Univ. of Technol.

Volume

42

Issue

10

fYear

2006

Firstpage

3243

Lastpage

3245

Abstract

For electrical machines with three-dimensional (3-D) magnetic fluxes, the magnetic properties of magnetic materials under 3-D excitations should be properly determined and applied in machine design and analysis. This paper presents the construction and calibration of the H (field strength) and B (flux density) sensing coils of a 3-D magnetic property testing system, and the correction of measurement error due to the misalignment of sensing coils with excitation fields. The 3-D tester has been used to measure the magnetic properties of soft magnetic composite (SMC), a material specially developed for application of 3-D flux electrical machines. Some 3-D results have been obtained on a cubic SMC sample. The measurement errors caused by the misalignment of sensing coils and excitation fields are corrected by a rotational transformation of coordinates

Keywords

calibration; fluxmeters; magnetic circuits; magnetic flux; magnetic variables measurement; soft magnetic materials; 3D magnetic fluxes; 3D magnetic property tester; electrical machines; field strength; flux density sensing coils; rotational transformation; sensing coils calibration; soft magnetic composite; Calibration; Coils; Magnetic analysis; Magnetic flux; Magnetic materials; Magnetic properties; Measurement errors; Sliding mode control; Soft magnetic materials; Testing; Calibration; misalignment; rotational transformation of coordinates; sensing coils; three-dimensional (3-D) magnetic property tester;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2006.878411

Filename

1704587