G - Physics – 01 – R
Patent
G - Physics
01
R
324/75, 340/88,
G01R 21/00 (2006.01) G01B 7/30 (2006.01) G01D 5/24 (2006.01) G01D 11/00 (2006.01) G08C 19/00 (2006.01) H01G 5/01 (2006.01) H01G 5/38 (2006.01) H04Q 9/00 (2006.01)
Patent
CA 2009069
IMPROVED ELECTRODE ARRAY FOR METER READING DEVICE ABSTRACT An electrode array and substrate for use in an appara- tus for remotely monitoring the position of a rotatable member, relative the substrate on which the array is dis- posed, as the rotatable member is rotated about an axis of rotation. The array includes a substrate composed of a three-layer composite having first and second surfaces, a plurality of spaced-apart, excitable electrodes defining a center portion disposed on the first surface, an aperture in the substrate located in the center portion for receiving an axle, a center electrode in the center portion, at least partially circumscribing the aperture, a guard composed of a first conductive strip disposed in the center portion on the first surface spaced apart from and located between the spaced apart excitable electrodes and the center electrode. The array further includes a second conductive strip dis- posed on the second surface of the substrate composite in electrical communication with the center electrode, a third and fourth conductive strips in electrical communication with the guard, the third and fourth conductor strips disposed on the second surface of the three-layer substrate composite, spaced apart from and positioned laterally on opposite sides of the second conductive strip and the substrate three-layer composite includes a middle metal layer in electrical communication with the guard.
Bonnett William B.
Gowling Lafleur Henderson Llp
Siecor Corporation
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