Capacitive displacement encoder

G - Physics – 01 – D

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

G01D 5/241 (2006.01) G01B 7/30 (2006.01) G01D 11/24 (2006.01)

Patent

CA 2368140

A capacitive motion encoder (140), for sensing the position of a moving object relative to a stationary object, includes at least one stationary element (141), coupled to the stationary object and a moving element (148), coupled to the moving object and in proximity to the stationary element. A field transmitter (142) generates an electrostatic field, which is modulated by a change in capacitance between the stationary and moving elements responsive to relative motion of the elements. A conductive shield (154) is electrically decoupled from both the moving and the stationary objects, and encloses the moving and stationary elements so as to shield the elements from external electrical interference. Processing circuitry (138) is coupled to sense the modulated electrostatic field and to determine responsive thereto a measure of the position of the moving object.

L'invention porte sur un codeur (140) capacitif destiné à détecter le déplacement d'un objet par rapport à un autre objet fixe et comprenant au moins un élément (141) fixe couplé à l'objet fixe, et un élément (148) mobile couplé à l'objet mobile et placé près de l'élément fixe. Un émetteur (142) de champ génère un champ électrostatique modulé par la variation de capacitance entre les éléments fixe et mobile et sensible au déplacement des éléments. Un revêtement (154) conducteur est désolidarisé électriquement des deux objets fixe et mobile et entoure les éléments fixe et mobile de façon à les protéger des interférences électriques externes. Un circuit (138) de traitement est couplé de façon à détecter le champ électrostatique modulé et à déterminer une mesure de position de l'objet mobile.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Capacitive displacement encoder does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Capacitive displacement encoder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Capacitive displacement encoder will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1848302

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.