US 12,455,176 B2
Device and system for determining a position of a magnetic source, or an orientation of a uniform magnetic field
Markus Roos, Baar (CH); and Javier Bilbao, Mannedorf (CH)
Assigned to MAGLAB AG, Basel (CH)
Filed by Maglab AG, Basel (CH)
Filed on May 1, 2023, as Appl. No. 18/310,060.
Claims priority of application No. 22200940 (EP), filed on Oct. 11, 2022.
Prior Publication US 2024/0118110 A1, Apr. 11, 2024
Int. Cl. G01D 5/14 (2006.01); G01D 5/244 (2006.01)
CPC G01D 5/145 (2013.01) [G01D 5/2448 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A sensor device for determining a position of a magnetic source that is movable relative to the sensor device, or vice versa, or for determining an orientation of a substantially uniform magnetic field, the sensor device comprising:
a substrate comprising a plurality of at least two magnetic sensors configured to provide a plurality of at least two sensor signals;
a signal combiner configured to combine sensor signals into a combined waveform; and,
a processing circuit configured to extract said position or orientation from the combined waveform;
wherein
the signal combiner is configured to generate the combined waveform, according to a timing scheme corresponding to an arrangement of the sensors, by including at least one portion of the sensor signals during respective predefined time durations;
wherein the predefined time durations correspond to the arrangement of the sensors, and are determined during a calibration procedure; and
wherein at least two of said predefined time durations have a different value.