Claw pole machine performances are strongly related to the electromagnetic properties of ferromagnetic materials. These properties are impacted by the manufacturing processes, in a heterogeneous way, as well as by the thermal behavior of the machine and the mechanical stress distribution. Due to the complexity of CP geometry, extracted samples cannot respect the dimensions prescribed in international standards of electric and magnetic measurements. This paper proposes a specific methodology to characterize the electrical conductivity and the magnetic behavior of massive parallelepiped specimens extracted from different locations of a CP rotor.
ArbenzL.BenabouA.ClénetS.MipoJ. and FaverolleP., Characterization of the local incremental permeability of a ferromagnetic plate based on a four needles technique, IEEE Trans. Magn.53(3) (2017), 1–7.
2.
BorsenbergerM.BenabouA.BaudouinC.BigotR.FaverolleP. and MipoJ.-C., Characterization of massive magnetic parts with a dedicated device, Int. J. Appl. Electrom. (2018), 1–16.
3.
YoussefM.E.Slinky stator: The impact of manufacturing process on the magnetic properties, in: 2017 IEEE International Electric Machines and Drives Conference (IEMDC), 2017, pp. 1–8.
4.
ArbenzL.BenabouA.ClenetS.MipoJ.-C. and FaverolleP., Characterization of the local electrical properties of electrical machine parts with non-trivial geometry, Int. J. Appl. Electromagn. Mech.48(2&3) (2015), 201–206.
5.
IshikawaK., Introduction to Quality Control, 1990.
6.
SchroderD.K., Semiconductor Material and Device Characterization, John Wiley & Sons, 2006.
7.
SmitsF.M., Measurement of sheet resistivities with the four-point probe, Bell Syst. Tech. J.37(3) (1958), 711–718.
8.
YamashitaM., Resistivity correction factor for four-probe method on circular semiconductors II, Jpn. J. Appl. Phys.27(7R) (1988), 1317.
9.
De WulfM.MakaveevD.HoubaertY. and MelkebeekJ., Design and calibration aspects of small size single sheet testers, J. Magn. Magn. Mater.254-255 (2003), 70–72.
10.
StupakovO.TomášI. and KadlecováJ., Optimization of single-yoke magnetic testing by surface fields measurement, J. Phys. Appl. Phys.39(2) (2006), 248–254.
11.
LyudkovskyG.RastogiP.K. and BalaM., Nonoriented electrical steels, JOM38(1) (1986), 18–26.
