发明名称 POSITION DETECTION SENSOR AND POSITION DETECTION DEVICE
摘要 <P>PROBLEM TO BE SOLVED: To provide a position detection sensor and a position detection device capable of reducing the size and the weight, and simply detecting the accurate moving position of a detection object, without requiring a complicated work for accurately detecting the moving position of the detection object. Ž<P>SOLUTION: This position detection sensor 1 includes; a movable magnet 72 provided on the detection object 4, and moving following movement of the detection object 4; a magnetic body 74, including a first facing part 74a having a facing surface facing to a first polarity side of the movable magnet 72; a second facing part 74b having a facing surface facing to a second polarity side of the movable magnet separately at a prescribed distance, and a connection part 74c for connecting the first facing part 74a to the second facing part 74b; and a sensor part 76 provided between the second facing part 74b of the magnetic body 74 and the movable magnet 72, for detecting the position of the movable magnet 72, based on a change of a magnetic field angle direction. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
申请公布号 JP2010185854(A) 申请公布日期 2010.08.26
申请号 JP20090031901 申请日期 2009.02.13
申请人 ALPS ELECTRIC CO LTD 发明人 KASASHIMA MASAO;NOGUCHI TAKASHI;TOKUNAGA ICHIRO;SHINANO MASAAKI
分类号 G01D5/18 主分类号 G01D5/18
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