Sensor arrangement for use in e.g. automobile industry, has four magneto-resistive sensor elements e.g. anisotropic magneto resistance-sensor element, and three distances corresponded to smallest absolute phase differences of preset values

摘要

The arrangement (110) has four magneto-resistive sensor elements (120) e.g. anisotropic magneto resistance-sensor element, where two sensor elements are proximately arranged in a distance. Other two sensor elements are proximately arranged in another distance. The first and third sensor elements are proximately arranged in third distance. Two distances correspond to smallest absolute phase difference of 1 degree or smaller than 90 degree in relation to a periodic magnetic field. The third distance corresponds to smallest absolute phase difference of 25 degrees. Independent claims are also included for the following: (1) a method for detecting section-wise periodic magnetic field produced or influenced by a transmitter object (2) a program with program codes executed by a processor to implement a method for detecting section-wise periodic magnetic field produced or influenced by a transmitter object.