Rotary position sensors (RPS) currently are applied widely in engine management systems for throttle position sensing and are being considered for other applications such as drive-by-wire. The potentiometer RPS relies on contact between a resistive element and a wiper and thus has an inherent wear mechanism.This paper describes a noncontacting RPS which is essentially a drop-in replacement for the present device. A linear output Hall Effect IC is key to achieving the required functionality, but it must be combined with a magnetic actuation scheme which provides a very linear and stable magnetic field as a function of input angle and packaging which provides long life and control of mechanical tolerances. Each of these design elements will be discussed.


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    Title :

    A Hall Effect Rotary Position Sensor


    Additional title:

    Sae Technical Papers


    Contributors:
    Hoy, Don (author) / Wu, George (author) / Murdock, Joe (author) / Bicking, Robert (author) / Johnson, Rusty (author)

    Conference:

    International Congress & Exposition ; 1991



    Publication date :

    1991-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    A Hall effect rotary position sensor

    Bicking,R. / Wu,G. / Murdock,J. et al. | Automotive engineering | 1991


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