Patent ID: 6992480
Filing Date: 2006-01-31
Classification: G01D

Abstract:
1. A method for determining position of a target moving relative to a magnetic sensor, the target having magnetic irregularities defining a pitch, an output of the magnetic sensor being responsive to movement of the target relative thereto, a voltage level of the output having a range comprising, for each pitch, at least one linear slope, said method comprising the steps of: determining a maximum voltage level of the output of the magnetic sensor; determining a minimum voltage level of the output of the magnetic sensor; calculating a preselected number of mutually spaced voltage levels, each said voltage level corresponding to a respective voltage level of the at least one linear slope; and generating a plurality of position pulses, each position pulse being generated when the voltage level of the output of the magnetic sensor has a predetermined relationship with respect to a respective calculated voltage level on the at least one linear slope.