Title :
Design of the Rotary Magnetic Position Sensor With the Sinusoidally Magnetized Permanent Magnet
Author :
Jeong, Seung-Ho ; Rhyu, Se-Hyun ; Kwon, Byung-Il ; Kim, Byung-taek
Author_Institution :
Dept. of Electr. Eng., Hanyang Univ., Kyounggi-Do
fDate :
4/1/2007 12:00:00 AM
Abstract :
This paper proposes a rotary magnetic position sensor (RMPS) which has a sinusoidally magnetized permanent magnet (PM) with a small number of poles. To make the sinusoidal magnetic flux density distribution from the PM, a magnetizing fixture is designed by adjusting its pole shape. The magnetization process is analyzed using the Preisach model and two-dimensional finite-element method (FEM). The simulation result of the magnetization is compared with the experimental one. Also, the ability of position detection from two sinusoidal signals is shown
Keywords :
finite element analysis; magnetic flux; magnetic sensors; magnetisation; permanent magnets; position measurement; FEM; Preisach model; flux density distribution; magnetisation process; pole shape adjustment; position detection; rotary magnetic position sensors; sinusoidal magnetized permanent magnet; two-dimensional finite element method; Magnetic analysis; Magnetic flux; Magnetic flux density; Magnetic sensors; Magnetic separation; Magnetization processes; Magnetostatic waves; Permanent magnets; Servomechanisms; Servomotors; Finite-element method; Preisach model; magnetization; rotary magnetic position sensor;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2007.892617
