Patent ID: 6304080
Filing Date: 2001-10-16
Classification: H02K

Abstract:
A system for verifying the location of each one of a plurality of physical features relative to magnetic poles arranged on a complex magnetic element having a fixed reference feature thereon, said system comprising:means for rotating the complex magnetic element so as to continuously expose each one of salt magnetic poles and each one of said physical features for a measurement of magnetic flux;means for measuring magnetic flux positioned proximate to said complex magnetic element, said means for measuring comprising a first probe for generating a plurality of first signals each one of which corresponds to a first magnetic flux value associated with each one of said magnetic poles, and a second probe for generating a plurality of second signals each one of which corresponds to a second magnetic flux value associated with each one of said plurality of physical features;encoder means operably connected to said means for rotating, said encoder means generating a third signal corresponding to an angular position of said magnetic element relative to said fixed reference feature in response to said first and second signals from said first and second probes, and wherein said encoder means enabling an association of said magnetic poles with said physical features,a data controller for acquiring and then analyzing said first-, second- and third signals corresponding to said first magnetic flux values, said second magnetic flux values, and said angular positions, respectively; andwherein said angular position, first magnetic flux values and said second magnetic flux values collectively define a data array.