US 11,754,643 B2
Method and apparatus for setting a gain at an installed magnetic field sensor
Markus Dietrich, Oberkirch (DE); Didier Zaegel, Illkirch (FR); and Jörg Merkle, Bühlertal (DE)
Assigned to Schaeffner Technologies AG & Co. KG, Herzogenaurach (DE)
Appl. No. 17/46,605
Filed by Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
PCT Filed Apr. 15, 2019, PCT No. PCT/DE2019/100341
§ 371(c)(1), (2) Date Oct. 9, 2020,
PCT Pub. No. WO2019/206368, PCT Pub. Date Oct. 31, 2019.
Claims priority of application No. 102018110075.2 (DE), filed on Apr. 26, 2018.
Prior Publication US 2021/0123987 A1, Apr. 29, 2021
Int. Cl. G01R 33/02 (2006.01); G01D 5/14 (2006.01); G01R 33/00 (2006.01)
CPC G01R 33/02 (2013.01) [G01D 5/145 (2013.01); G01R 33/007 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method for setting a gain of a magnetic field sensor, comprising:
providing the magnetic field sensor and an evaluation unit on a same printed circuit board;
generating a magnetic field signal with the magnetic field sensor;
transmitting the magnetic field signal to the evaluation unit;
evaluating the magnetic field signal with the evaluation unit by comparing the magnetic field signal with a threshold magnetic field signal, wherein the threshold magnetic field signal is determined at a minimum distance of the magnetic field sensor from an element generating a magnetic field and at a predetermined temperature;
setting the gain based on a difference between the magnetic field signal and the threshold magnetic field signal; and
transmitting a signal for setting the gain from the evaluation unit to the magnetic field sensor.