Arrangement for the measurement of the magnetic field strength or of local differences magnetic field strengths, as well as circuit arrangement for the evaluation unit and uses of the arrangement and of the circuit arrangement

摘要

Arrangement for the measurement of the magnetic field strength or of local differences of the magnetic field strength with magnetic sensors and means for generating a known magnetic fields, characterized in that one or more magnetic angle sensors (1), which in each case two or more sensor elements (4; 5) whose output signals (6; 7) by the angle (β) of the direction of the magnetic field of the entire magnetic field acting on it (h_g) against a reference direction (2) is determined and are phase shifted against one another, and an evaluation unit (3), which consists of the output signals (6; 7) the signal value of the magnetic field strength or the local difference of the magnetic field strengths, is determined, are present, and in that the sensor elements (4; 5) in magnetic fields (h_b) a known field strength and a known direction, the with the direction of the magnetic field to be measured (h) at an angle α, are located, and the known field strength and the known the direction of the at least in the region of the sensor elements (4; 5) are constant in each case.