Progress in electronic vehicle control has created the need for contactless detection of rotation angles up to 360 degrees, such as for engine control valves or vehicle control steering. Conventional contactless sensors that can detect rotation angles up to 360 degrees have been optical or magnetic rotary encoders, which are large and expensive for use in automobiles. The authors developed a small and low-cost sensor that is suited for mass production and able to detect rotation angles up to 360 degrees by combining MRE sensors with a membrane coil. The construction of the new sensor, the principle of operation and a photograph of a prototype sensor are shown in the paper. The authors formed an insulation layer after forming two bridge MREs on a silicon wafer. Following the above procedure, an auxiliary coil made by etching an aluminum foil into an octagonal spiral has been laminated with the sensor. After taking into account the dimensions of the MRE and the distance between adjacent coil elements a number of coils of 16 to 33 has been determined. The resistance of the coil with the number of turns of 16 was approximately 50 Ohm, showing that the sensor could be operated by a 5V power with a 100mA pulse and 10% duty.


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    Titel :

    360-degree rotation angle sensor consisting of MRE sensors with a membrane coil


    Weitere Titelangaben:

    360-Grad-Drehwinkelsensor bestehend aus magnetischen Drehgebern mit einer Membranspule


    Beteiligte:
    Ina, Toshikazu (Autor:in) / Takeda, Kenji (Autor:in) / Nakamura, Tsutomu (Autor:in) / Shimomura, Osamu (Autor:in) / Ban, Takao (Autor:in) / Kawashima, Takashi (Autor:in)


    Erscheinungsdatum :

    2005


    Format / Umfang :

    11 Seiten, 10 Bilder, 5 Quellen




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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