Magnetic detection of position and direction

摘要

Method involves : (1) prepare network of even number N of magnetic sensor apart from distance (x), with initial effective length (N-1)x larger than spacing (d) between poles; (2) Deactivate equal number of sensors; (3) share magnetic sensors still active in two equal groups; (4) Add signals from both groups. (5) Add sum of signals from second group to sum of signals from first group to obtain sinusoidal wave; and (6) Subtract sum of signals of second group from sum of signal of first group to obtain cosinusoidal wave. An Independent claim is also included for the description of the ASIC circuit (Application specific integrated circuit).