Magnetic circuit reluctance adjustment

Details Magnetic circuit reluctance adjustment Magnetic circuit reluctance adjustment

H - Electricity

01

F

317/26

H01F 3/12 (2006.01) H01F 17/04 (2006.01) H01F 27/42 (2006.01)

Patent

CA 1120998

ABSTRACT OF THE DISCLOSURE A magnetic circuit comprises two ferromagnetic half-shells which are rigidly held therebetween and provided with central cores forming an air-gap therebetween. At least one of the half- shells includes a thin wall which is near the air-gap and perforated gradually and partially thereby obtaining a predetermined reluctance for the magnetic circuit. The machining and the piercing of holes in the thin wall is accomplished by automatic adjusting of emission parameters of a laser beam in function of successive comparisons between the measured reluctance and the predetermined. reluctance.

325117

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