H - Electricity – 01 – F
Patent
H - Electricity
01
F
H01F 7/08 (2006.01) F16K 31/06 (2006.01) H01F 7/18 (2006.01)
Patent
CA 2247809
An apparatus detects a position of an armature within a solenoid coil by superimposing a fixed frequency sensing signal onto the coil driver signal. The combined signal is applied to the solenoid coil and an alternating current component varies with changes in inductance of the solenoid coil that result from position changes of the armature. A current sensor produces an output signal indicating a level of current flowing through the solenoid coil and a filter extracts the alternating component of that output signal that results from the sensing signal. A position circuit determines the position of the armature from an output from the filter.
L'invention porte sur un appareil qui détecte la position d'une armature dans une bobine de solénoïde en superposant un signal de détection à fréquence fixe au signal d'entraînement de la bobine. Le signal combiné est appliqué à la bobine de solénoïde et une composante alternative varie selon les changements d'inductance de la bobine de solénoïde résultant des changements de position de l'armature. Un ampèremètre émet un signal de sortie indiquant le niveau de courant qui passe dans la bobine de solénoïde et un filtre extrait la composante alternative de ce signal de sortie résultant du signal de détection. Un circuit de position détermine la position de l'armature à partir d'une charge provenant du filtre.
Fetherstonhaugh & Co.
Husco International Inc.
LandOfFree
Method and apparatus for sensing armature position in... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for sensing armature position in..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for sensing armature position in... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1633800