In this work, a linear position sensor with a Hall effect element for automotive applications is presented. The work involves the design of device structure, finite element analysis (FEA) computer modeling of sensor performance, fabrication of sensor prototype, and prototype characterization. The significance of the work is a low cost linear position sensor has been developed with high linearity for use in automobile control systems. The complete sensor system is designed for ease of manufacturing and the harsh automotive environments. The output data from the two-dimensional basic ideal structure model shows high linearity over a range of 11 mm. Models of temperature coefficient effect (TCE), electromagnetic interference (EMI), and several optimized device structures, including reducing the thickness of bottom material, shaping of the corners as well as adding shield material were also analyzed. The sensor prototype was fabricated and characterized. The modeling data were compared with the measurement results from the sensor prototype.


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    Title :

    Linear magnetic position sensor for automotive applications


    Contributors:
    Liu, Z. (author) / Tian, L. (author) / Parham, J. (author) / Frazier, A.B. (author)


    Publication date :

    1999


    Size :

    12 Seiten, 9 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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