H - Electricity – 03 – M
Patent
H - Electricity
03
M
203/100, 101/16
H03M 1/22 (2006.01) G07B 17/00 (2006.01)
Patent
CA 1321320
PRINTWHEEL AND ENCODER ASSEMBLY ABSTRACT OF THE DISCLOSURE A printwheel encoder comprises a non-ferrous shaft having a magnet strip and a flexible Hall-effect sensor arrangement affixed thereon. Molded printwheels including a flux conducting ring having an inner spiral surface are rotatably mounted on the shaft in respective juxtaposition to each Hall-effect sensor. The wheels are mounted adjacent to each other so that the rings form a nearly continuous flux conducting sheath which protects the Hall-effect sensors from external magnetic fields.
583796
Pitney Bowes Inc.
Sim & Mcburney
LandOfFree
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