-
公开(公告)号:EP0780663A1
公开(公告)日:1997-06-25
申请号:EP96203314.8
申请日:1996-11-25
CPC分类号: G01D5/145 , F02P7/0675
摘要: A rotation sensor has a target wheel (20) including first and second tracks (20A,20B) and a dual-element magnetoresistive sensor (10). Each individual magnetoresistive element (19A,19B) is aligned with a respective track (20A,20B) of the target wheel (20) to provide substantially inverse resistive changes with the passage of the wheel. One of the tracks (20A) is characterized by alternating high and low permeability, such as by a toothed section, and the other of the tracks (20B) is characterized by invariant permeability.
摘要翻译: 旋转传感器具有包括第一和第二轨道(20A,20B)的目标轮(20)和双元件磁阻传感器(10)。 每个单独的磁阻元件(19A,19B)与目标轮(20)的相应轨道(20A,20B)对准,以随着车轮的通过而提供基本上的反电阻变化。 轨道(20A)之一的特征在于交替的高,低磁导率,例如通过齿形部分,并且轨道(20B)中的另一个的特征在于不变的磁导率。