Redundant electronic angle measurement system with array of Hall-effect elements has eight elements in circle around edge of magnetic flux concentrating disk

摘要

The electronic angle measurement system has a circular array of Hall-effect elements (3-10) on the flat top surface of a semiconductor substrate. It has eight elements arranged in opposed pairs on straight lines spaced 45 degrees apart in a circle around the edge of a magnetic flux concentrating disk (2). The flux concentrating disk is made of weakly magnetizable material. Each line (3-7, 4-8, 5-9, 6-10) with two Hall-elements makes up one sensor. All the straight lines pass through the center of symmetry (12).