公开(公告)号：US20190317120A1

公开(公告)日：2019-10-17

申请号：US15950642

申请日：2018-04-11

Applicant: Infineon Technologies AG

Inventor： Simone FONTANESI ,  Tobias WERTH ,  Peter Alfred FRIESSNEGGER

IPC: G01P3/44 ,  G01D5/14 ,  G01D5/16

Abstract: Some examples described herein may include receiving, by a sensor device, differential measurement signals from at least two sensor elements; generating, by the sensor device, fixed-calibrated channels from the differential measurement signals, generating, by the sensor device, self-calibrated channels from the differential measurement signals; determining, by the sensor device, offsets associated with the differential measurement signals based on the self-calibrated channels; determining, by the sensor device, whether a vibration occurred within the differential measurement signals based on the fixed-calibrated channels; and providing, by the sensor device, phase measurement information based on the offsets and whether the vibration occurred, wherein the phase measurement information identifies a phase of the rotatable object.

公开(公告)号：US20220128587A1

公开(公告)日：2022-04-28

申请号：US17081181

申请日：2020-10-27

Applicant: Infineon Technologies AG

Inventor： Johannes GUETTINGER ,  Peter Alfred FRIESSNEGGER ,  Simon HAINZ

IPC: G01P3/44

Abstract: A sensor device includes at least one first sensor element that generates a first sensor signal based on sensing a varying magnetic field; at least one second sensor element that generates a second sensor signal based on sensing the varying magnetic field; a signal tracking circuit that generates a trigger signal having trigger pulses that are generated based on crossings of the first sensor signal with an adaptive threshold and extracts vibration relevant information using the first sensor signal and the second sensor signal; an output controller that generates an output signal having output pulses that are triggered by the trigger pulses during a non-vibration event and suppress the output pulses during an entire duration of a vibration event; and a vibration detection circuit that detects the vibration event based on the extracted vibration relevant information and indicates the vibration event to the output controller.