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Position measurement using flux modulation and angle sensing | Positionsmessung unter Verwendung einer Modulations- und Winkelmessung | Mesure de position au moyen de détection d'angle et de modulation du flux

Patentnummer:EP2708854B1
IPC Hauptklasse:G01D000514
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Erfinder:
Anmeldung:11.09.13
Offenlegung:13.09.12
Patenterteilung:12.12.18

Abstract / Hauptanspruch
Apparatus and methods for determining a position of a movable component. One apparatus includes a controllable source (102) of varying magnetic flux. In a particular embodiment, the magnetic flux is directed through a magnetic sensor (120) using a first flux concentrator (115a) and a second flux concentrator (115b). The sensor (120) generates a sensor signal (126) that is provided to an electrical circuit (127) designed to demodulate the signal. The demodulated signal is provided to a controller (112). The controller (112) converts the signal and calculates the position of the second flux concentrator (115b) relative to the first flux concentrator (115a). The controller (112) may take a predetermined action based on the calculated position of the second flux concentrator (115b).

EP2708854B1


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