Magnetic transducers of improved resistance to arbitrary...

Details Magnetic transducers of improved resistance to arbitrary... Magnetic transducers of improved resistance to arbitrary...

H - Electricity

04

R

H04R 11/00 (2006.01) H04R 11/02 (2006.01)

Patent

CA 2450377

The armature of an electromagnetic transducer, extending through the polarizing flux between opposing permanent magnet pole faces, is snubbed to limit its shock-induced excursions normal to the directions of its extent and of the flux field. Such snubbing helps to protect the armature from plastic damage and accompanying shift of magnetic balance of the transducer upon the occurrence of a strong mechanical shock in an arbitrary direction.

L'invention concerne l'armature d'un transducteur électromagnétique, passant par le flux de polarisation entre des faces polaires magnétiques opposées en permanence. Cette armature est freinée afin de limiter ses excursions induites par des chocs perpendiculairement aux directions de son sens de mouvement et du champ de flux. Ce freinage permet de protéger l'armature de dégâts plastiques et d'accompagner le déplacement de l'équilibre magnétique du transducteur au moment où un puissant choc mécanique se produit dans une direction arbitraire.

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