Patent ID: 7751997
Filing Date: 2010-07-06
Classification: G01D

Abstract:
1. A method for unambiguously determining an angular position measurement Φ of a revolving shaft, comprising the steps of using m phase-measured values α based on the phase-measured values α assigning obtained distances V from a distance measurement device to positions T; adding phase-measured values α wherein the periodicity values n  with Δn>1; within a reduced unambiguous range E red , with assigning the distances V to the positions T using the following scheme: in which T Uk stands for the particular lower limit, and T Ok stands for the particular upper limit of positions T, and the assignment intervals between the upper limit (T Ok ) and the lower limit (T Uk ) for positions T, and the distances ΔV=|V k+1 −V k | correspond to at least one periodicity difference Δn.