Vibration transducer

Details Vibration transducer Vibration transducer

G - Physics

01

H

349/76

G01H 1/00 (2006.01)

Patent

CA 1158352

ABSTRACT OF THE DISCLOSURE An induction vibration transducer for measuring vibrations or shocks comprising a bush having an inner surface and provided with an antifriction insert on its inner surface. Two fixed magnets each mounted at one end of the bush have opposite confronting poles. A movable permanent magnet is mounted for reciprocation within the bush between the two fixed magnets, each repelling a confronting pole of this movable permanent magnet. Two induction coils each having a geometrical axis conforming with the axis of the bush, are wound around empty spaces formed in the bush between the movable permanent magnet and the two fixed magnets when the movable permanent magnet is in a central position, and are mounted for delivering a resultant electromotive force corresponding to the sum of electromotive forces induced in the two induction coils during a movement of the movable permanent magnet. This vibration transducer has relatively small dimensions and also withstands an uneven temperature field.

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