Type �M2-15 vibration magnetometer for measuring the magnetic saturation moment of ferromagnetic specimens

Basic Statements of Research and Magnetic Field of Axial Excitation Inductor GeneratorIn this work the main features of axial excitation inductor generators are described. Mathematical simulation of a magnetic field is realized by using the finite element method. The objective of this work is to elucidate how single elements shape, geometric dimensions and magnetic saturation of magnetic system affect the main characteristics of the field (magnetic induction, magnetic flux linkage). The main directions of a magnetic system optimization are specified.

Download Full-text

Torque Ripple Suppression based on Optimal Harmonic Current Injection in Dual Three-Phase PMSMs under Magnetic Saturation

IEEE Transactions on Industrial Electronics ◽

10.1109/tie.2021.3088361 ◽

2021 ◽

pp. 1-1

Author(s):

Boyuan Zheng ◽

Zou Jibin ◽

Yongxiang Xu ◽

Xiaoyu Lang ◽

Guodong Yu

Keyword(s):

Torque Ripple ◽

Current Injection ◽

Magnetic Saturation ◽

Harmonic Current ◽

Three Phase

Download Full-text

Zum paramagnetischen Verhalten von Palladium/Silber/Eisen- Legierungen/ On the Paramagnetic Behaviour of Palladium-Silver-Iron Alloys

Zeitschrift für Naturforschung A ◽

10.1515/zna-1975-0512 ◽

1975 ◽

Vol 30 (5) ◽

pp. 645-655

Author(s):

Peter Brill

Keyword(s):

Electron Concentration ◽

Magnetic Moments ◽

Alloy Series ◽

Band Filling ◽

Paramagnetic Behaviour ◽

Field Coefficient ◽

Saturation Moment ◽

Molecular Field Coefficient ◽

The Moment ◽

Curie Temperatures

Abstract The paramagnetic susceptibility of four PdAgFe alloy series containing 1, 3, 5 and 7 at. % Fe have been measured between 20° and 150 °C. On the basis of a band filling model the local moment contribution to the susceptibility has been evaluated according to a Curie -Weiss law. Assuming that the iron atoms donate 3 electrons and the silver atoms 1 electron to the Pd 4d band, the effective magnetic moments and the paramagnetic Curie temperatures of all the alloys can be represented by a single curve against the electron concentration. The effective magnetic moment is consistent with an Fe moment of 5.92 μB localized on the iron sites and a Pd moment varying with electron concentration and temperature. The same turns out to be true for the ferromagnetic region where the saturation moment, obtained on PdFe alloys and a PdAgFe alloy by different authors, is considered to arise from a localized Fe moment of 5 μB and a concentration dependent Pd moment. The molecular field coefficient for the interaction between the Fe moments and the Pd 4d electrons is found to be 850 mol/cm3 at 385 K and 1200 mol/cm3 at 0 K. Finally, the iron moment suggested in this work is contrasted with the moment derived from neutron diffraction measurements.

Download Full-text