DocumentCode :
2432192
Title :
Magnetization behavior of soft magnetic materials for sensor applications
Author :
Arshad, Atika ; Khan, Sheroz ; Tasnim, Rumana ; Sapian, Mohamad Shamsul Fahmi Bin Mohd ; Ibrahim, Mohammad Fadhil Bin ; Daud, Muhammad Ridhwan Bin ; Husin, Mohd Ezralisham Bin Mohd ; Azini, Ahmad Fauzan Bin ; Idrus, Ahmad Balqini Bin
Author_Institution :
Dept. of Electr. & Comput. Eng., Int. Islamic Univ., Kuala Lumpur, Malaysia
fYear :
2011
fDate :
28-30 Sept. 2011
Firstpage :
80
Lastpage :
83
Abstract :
This paper presents a magnetic characterization technique based on the analysis of respective magnetization curves of the soft ferrites materials under test. The magnetic properties in low external magnetic field are explored for those materials. The method applies an alternating electric current through the coil to magnetize the ferromagnetic materials used as a core. Due to the change in current, the changes in the primary coil result in changing the magnetic field and the magnetic flux. An op-amp acting as a voltage integrator is used in the circuit, connected to the secondary winding. Several experiments were conducted to obtain desired hysteresis loops. These results show the changes due to variation of magnetism; hence one can decide on the comparative values of magnetic parameters for each sample tested. Moreover, the obtained hysteresis loops are evaluated to be comfortably used for the application in magneto resistive applications, magneto-resistive sensors and for a wide range of biomedical equipment items.
Keywords :
ferromagnetic materials; magnetic sensors; magnetisation; operational amplifiers; alternating electric current; biomedical equipment items; ferromagnetic materials; hysteresis loops; magnetic field; magnetic flux; magnetization behavior; magnetization curves; magneto-resistive sensors; op-amp; secondary winding; soft ferrite materials; soft magnetic materials; voltage integrator; Coils; Magnetic cores; Magnetic flux; Magnetic hysteresis; Magnetomechanical effects; Soft magnetic materials; B-H curve; Soft ferrites; magnetization; permeability;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Micro and Nanoelectronics (RSM), 2011 IEEE Regional Symposium on
Conference_Location :
Kota Kinabalu
Print_ISBN :
978-1-61284-844-0
Type :
conf
DOI :
10.1109/RSM.2011.6088296
Filename :
6088296
Link To Document :
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