Systems and methods of recording piston rod position...

Details Systems and methods of recording piston rod position... Systems and methods of recording piston rod position...

G - Physics

01

D

G01D 5/14 (2006.01) G01D 5/16 (2006.01)

Patent

CA 2524264

Described are a system and method of recording piston rod position information in a magnetic layer on the piston rod. A piston rod moving with respect to a cylinder has a magnetically hard layer formed thereon to provide a recording medium. A magnetic pattern is recorded in the magnetically hard layer. A magnetic field sensor senses the recorded magnetic pattern while the piston rod is moving with respect to the cylinder and generates signals in response to the magnetic pattern that are used to determine an instantaneous position of the piston rod.

L'invention concerne un système et un procédé d'enregistrement des informations de position d'une tige de piston dans une couche magnétique sur la tige de piston. Une tige de piston qui se déplace par rapport au cylindre possède une couche magnétique dure formée dessus afin de fournir un support d'enregistrement. Un motif magnétique est enregistré dans la couche magnétique dure. Un détecteur de champ magnétique détecte le motif magnétique pendant que la tige de piston se déplace par rapport au cylindre et génère des signaux en réponse au motif magnétique qui servent à déterminer une position instantanée de la tige de piston.

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