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INDUCTIVE SENSOR DEVICE | INDUKTIVE SENSORVORRICHTUNG | DISPOSITIF DE CAPTEUR INDUCTIF

Patentnummer:EP3299770B1
IPC Hauptklasse:G01D000520
Anmelder:
Erfinder:
Anmeldung:22.09.16
Offenlegung:22.09.16
Patenterteilung:03.06.20

Abstract / Hauptanspruch
The present invention relates to an inductive sensor device (23) having a scale unit (24) and a sensor unit (25) that can be moved relative to each other in a measuring direction (M). The scale unit contains scale elements (26) that are adapted to create a field pattern (P(x)) in measuring direction (M) that is detected by means of a receive circuit (35) of the sensor unit (25). The receive circuit (35) contains at least a first receive coil set (36) and a second receive coil set (37) that are offset in measuring direction (M). In so doing a first spatial phase and a second spatial phase receive signal is provided by these receive coil sets (36, 37) respectively. These spatial phases can be used for absolute position determination.

EP3299770B1


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