Invention Grant
- Patent Title: Magnetic out-of-axis angle sensing principle
- Patent Title (中): 磁轴外角度感测原理
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Application No.: US14601385Application Date: 2015-01-21
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Publication No.: US09200924B2Publication Date: 2015-12-01
- Inventor: Wolfgang Granig , Gernot Binder
- Applicant: Infineon Technologies AG
- Applicant Address: DE Neubiberg
- Assignee: Infineon Technologies AG
- Current Assignee: Infineon Technologies AG
- Current Assignee Address: DE Neubiberg
- Agency: Eschweiler & Associates, LLC
- Main IPC: G01B7/30
- IPC: G01B7/30 ; G01D5/12 ; G01R33/025 ; G01D5/14 ; G01D5/244

Abstract:
The present disclosure relates to a magnetic angle sensor module having first magnetic polewheel comprising a first number of poles and a second magnetic polewheel comprising a second number of poles greater than the first number. First and second magneto-resistive sensors are located around the first polewheel at a first angular position and a second angular position, respectively. The first and second magneto-resistive sensors collectively generate sensor signals corresponding to a measured angle of the first polewheel, while the third magneto-resistive sensor generates a third sensor signal corresponding to a measured angle of the second polewheel. A signal processor receives the first and third sensor signals and operates an algorithm that determines a position within a signal curve of the second polewheel from the first sensor signal and that determines an enhanced angle from the position within the signal curve and the third sensor signal.
Public/Granted literature
- US20150130446A1 Magnetic Out-of-Axis Angle Sensing Principle Public/Granted day:2015-05-14
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