With the need for small size and high accuracy for vehicle equipment, there has been an increasing need for high-performance angle sensors which can detect micro-angles (less than several degrees) with high accuracy and which have environmental resistance, durability, and cost-competitiveness, that are sufficient for on-vehicle sensors. To design a micro-rotation angle sensor with excellent vehicle mountability, the authors developed a small sensor which uses a new magnetic circuit and a Hall IC and which also have excellent environmental resistance. This sensor is featured by a structure consisting of a multipole magnet, yokes with tab portions that concentrate the magnetic flux from the magnet, and magnetic flux collecting rings. In this way it was possible to achieve both high accuracy and high sensitivity with the magnetic type sensor. The authors developed a high accuracy micro-rotation angle sensor incorporated with a Hall IC. Because of a newly devised magnetic circuit, this sensor achieves small size and high environmental tolerance, and is already being used in the latest on-vehicle control systems.


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    Title :

    Micro-rotation angle sensor with integrated hall IC


    Additional title:

    Drehzahlsensor in Mikrobauweise mit integriertem Hall-IC


    Contributors:
    Ina, T. (author) / Takeda, K. (author) / Sawada, A. (author) / Fukaya, S. (author)


    Publication date :

    2008


    Size :

    9 Seiten, 11 Bilder, 3 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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