Title :
Sinusoidal behavior of a di-pole magnetization for position sensing applications
Author :
Paulides, J. ; Lomonova, E. ; Vandenput, A. ; Zaaijer, E.
Author_Institution :
Eindhoven Univ. of Technol., Eindhoven
Abstract :
Magnetic position sensing is based on the measurement of the magnetization pattern of a di-pole, or multipole, magnetic ring using a Hall sensor, which shows the variation of the magnetic field density along the circumference of the ring. The ideal magnetic behavior of the permanent magnet ring has a sinusoidal hall-sensor output, which makes it suitable for sensing applications. However, practical measurements show that the sinusoidal behavior sometimes occurs with errors. This paper describes the investigation of these errors by means of mismatch in the magnetization pattern of the dipole permanent magnet (PM)-ring.
Keywords :
magnetic sensors; magnetisation; permanent magnets; Hall sensor; PM ring; dipole magnetization; dipole permanent magnet ring; magnetic field density; Electromechanical sensors; Magnetic field measurement; Magnetic flux; Magnetic materials; Magnetic sensors; Magnetization; Mechatronics; Position measurement; Temperature sensors; Voltage;
Conference_Titel :
Magnetics Conference, 2006. INTERMAG 2006. IEEE International
Conference_Location :
San Diego, CA
Print_ISBN :
1-4244-1479-2
DOI :
10.1109/INTMAG.2006.374910
