Online monitoring of the maximum angle error in AMR sensors

A.C. Zambrano Constantini, Hans G. Kerkhoff

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    1 Citation (Scopus)
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    Anisotropic Magnetoresistance (AMR) sensors are often used for angle measurements. The sensor outputs consist of two sinusoidal signals that show undesired characteristics as offset voltage, amplitude imbalance and harmonics, which affect the angle measurements. These parameters change due to aging effects, but until now it is considered that these variations do not affect the sensor accuracy. The largest sources of angle error are compensated at the start of the sensor life but they are not monitored during its lifetime. However, the accuracy requirements are increasing and in the future, it will be necessary to verify that the sensor satisfies the accuracy despite aging. This research proposes different equations that are useful to monitor online the maximum angle error due to different sources. Based on this information it is possible to take action in order to guaranty the accuracy during the entire sensor lifetime.
    Original languageUndefined
    Title of host publicationIEEE 22st International On-Line Testing Symposium, IOLTS 2016
    Place of PublicationUSA
    Number of pages2
    ISBN (Print)978-1-5090-1507-8
    Publication statusPublished - Oct 2016
    Event22nd IEEE International Symposium on On-Line Testing and Robust System Design 2016 - Sant Feliu de Guixols, Spain
    Duration: 4 Jul 20166 Jul 2016
    Conference number: 22

    Publication series



    Conference22nd IEEE International Symposium on On-Line Testing and Robust System Design 2016
    Abbreviated titleIOLTS 2016
    CitySant Feliu de Guixols
    Internet address


    • online monitoring
    • EC Grant Agreement nr.: FP7/644905
    • EWI-27433
    • IR-102288
    • angle error
    • METIS-319486
    • AMR sensors

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