Manufacturing method for precise multi-pole magnetic components

Details Manufacturing method for precise multi-pole magnetic components Manufacturing method for precise multi-pole magnetic components

2006-10-03

2006-10-03

Trinh, Minh (Department: 3729)

Metal working

Method of mechanical manufacture

Electrical device making

C029S825000, C029S829000, C029S831000, C336S232000, C336S200000

Reexamination Certificate

active

07114237

ABSTRACT:
A method is proposed to manufacture a precise multi-pole magnetic component for using in magnetic encoders. A special layout of the circuit pattern is designed and formed on a printed circuit board (PCB). Alternate and regular magnetic field is induced according to Ampere's law after a current flowing through the circuit on the PCB. The multi-pole magnetic component with fine magnetic pole pitch is achieved by forming the high-density circuit patterns on a substrate using the PCB technology.

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Yin-Jao Luo et al., Chicago '93 EEIC/ICWA Exposition; Multi-pole Magnetization of High Resolution Magnetic Encoder; pp. 237-242 (1993).

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