Geomagnetic direction sensor

专利名称：Geomagnetic direction sensor发明人：Masayoshi Fujita,Takehiro Nagaki申请号：US08/449818申请日：19950524公开号：US05564194A公开日：19961015

摘要：A geomagnetic direction sensor has a substrate, at least two magneto- resistiveeffect devices and a coil for generating the bias magnetic field. The substrate retainsshape symmetry when rotated through 90. degree. and includes plural magnetic coresfor converging the geomagnetism. The magnetic cores are arrayed circumferentially ofthe substrate and interconnected with one another by a non-magnetic material. At leasttwo magneto-resistive effect devices are provided in register with the magnetic gaps soas to be substantially at right angles to one another and to the direction of the magneticfield of the geomagnetism in the magnetic gap region. The substrate also includes a coilfor generating a bias magnetic field for impressing a bias magnetic field to each of themagneto-resistive effect devices.

申请人：SONY CORPORATION

代理人：Ronald P. Kananen

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