Linear segment or revolution counter having a ferromagnetic...

Details Linear segment or revolution counter having a ferromagnetic... Linear segment or revolution counter having a ferromagnetic...

G - Physics

01

P

G01P 3/481 (2006.01) G01D 5/14 (2006.01) G01D 5/245 (2006.01)

Patent

CA 2696690

Absolute counters for linear segments or revolutions having a Wiegand element (WE) in the main field between to opposite excitation magnets (EM1, EM2) connected by a common ferromagnetic back connection body (14), and an additional sensor element (SE) for determining the information about the polarity and the position of the excitation magnet, wherein the output signals of the Wiegand element (WE) simultaneously supplies energy for the required counter and logic electronics, as well as having an additional sensor (ZS) for the fine resolution in the frame work of a multi- turn which also lies within the main field between the excitation magnets (EM1, EM2).

L'invention concerne un compteur absolu de segments linéaires ou de tours. Le compteur absolu selon l'invention comprend un élément à effet Wiegand (WE) dans le champ principal entre deux aimants d'excitation (EM1, EM2) placés à l'opposé l'un de l'autre et reliés par le biais d'un corps de culasse ferromagnétique commun (14), ainsi qu'un élément capteur supplémentaire (SE) pour la détermination d'informations sur la polarité et la position de l'aimant d'excitation, les signaux de sortie de l'élément à effet Wiegand (WE) fournissant également l'énergie pour l'électronique de comptage et d'enregistrement nécessaire. Le compteur selon l'invention comprend également un capteur supplémentaire (ZS) servant à la résolution fine dans le cadre d'un compteur multitour et se situant également dans le champ principal entre les aimants d'excitation (EM1, EM2).

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