This equipment was developed for magnetization of magnetic encoders (rotary and linear types) and is capable of a magnetization pitch as from 0.1 mm up to several mm.
Accuracy of magnetization pitch is much better than that of the yoke.
Rotary type magnetizer
Japanese patent No. 4346256
Rotary type magnetizer
Capable of magnetizing rare-earth magnets for specific specifications
Capable of magnetizing long magnets longer than 5m
Linear type magnetizer
Linear type magnetizer
Characteristics and accuracy magnetization
Characteristics comparison example of magnetizing yoke and rotary magnetization
Magnetization accuracy for 100-pole outer circumference magnetizing yoke.
Magnetization accuracy for 100-pole outer circumference rotary magnetization.
Characteristics comparison example of magnetizing yoke and rotary magnetization
Magnetizing yoke Rotary magnetization
Magnetic flux ripple [%]. 8.5 3.9
1 pole variation [%] [ ＋ ] 3.08 [ ＋ ] 0.50
[ － ] 2.72 [ － ] 0.56
2 poles variation [%]. [ ＋ ] 1.64 [ ＋ ] 0.35
[ － ] 1.15 [ － ] 0.28
1 pole cumulative error [%] 7.69 1.33
2 poles cumulative error [%] 71.9 1.11
PAGE Accuracy of magnetization pitch is much better than that of the yoke.
