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

Volume

43

Issue

4

fYear

2007

fDate

4/1/2007 12:00:00 AM

Firstpage

1837

Lastpage

1840

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;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2007.892617

Filename

4137748