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    • 1. 发明授权
    • Potentiometer provided with giant magnetoresistive effect elements
    • 电位器配有巨磁阻效应元件
    • US06175296B1
    • 2001-01-16
    • US09353293
    • 1999-07-12
    • Ichirou TokunagaSeiji KikuchiYoshito SasakiTakashi Hatanai
    • Ichirou TokunagaSeiji KikuchiYoshito SasakiTakashi Hatanai
    • H01L4300
    • G01D5/145
    • The potentiometer of the present invention includes at least a pair of giant magnetoresistive effect elements, in which the giant magnetoresistive effect elements to be paired are formed on a substrate in a state that the elements are connected mutually electrically with the orientations of magnetization axes of the pinned magnetic layers facing 180° opposite each other, and a magnetic coding member is rotatably provided to face the giant magnetoresistive effect elements on the substrate, the magnetic coding member is disposed in such a manner that the center of rotation of the magnetic coding member passes through an intermediate position of the giant magnetoresistive effect elements to be paired, and the magnetic coding member has at least two magnetic poles formed along the direction of rotation of itself.
    • 本发明的电位计包括至少一对巨磁阻效应元件,其中要成对的巨磁电阻效应元件以这样的状态形成在基板上,即元件与电磁轴线的方向相互电连接 被固定的磁性层相对于彼此相对的180°,并且磁性编码构件可旋转地设置成面对基板上的巨磁阻效应元件,磁编码构件以这样的方式设置,使得磁编码构件的旋转中心通过 通过要成对的巨磁阻效应元件的中间位置,并且磁编码构件具有沿其自身旋转方向形成的至少两个磁极。
    • 4. 发明授权
    • Device for detecting the rotational angle of a rotary member
    • 用于检测旋转构件的旋转角度的装置
    • US06456065B2
    • 2002-09-24
    • US09731508
    • 2000-12-07
    • Toshiyuki HoshiHironori KatoYoshio SanpeiHirofumi OkumuraIchirou TokunagaToshio Ogawa
    • Toshiyuki HoshiHironori KatoYoshio SanpeiHirofumi OkumuraIchirou TokunagaToshio Ogawa
    • G01B730
    • B62D15/02G01D3/08
    • A rotational angle detecting device includes a rotation detecting section for outputting sinusoidal first and second detection signals as a result of the rotation of a rotor connected to a rotary member, a storage section for updating and storing the first and second detection signals, and a controlling section. The first and second detection signals have constant amplitudes, have the same periods, and have wavelengths which are output of phase. The controlling section compares the amplitude values of most recent first and second detection signals output from the rotation detecting section, and determines whether or not the amplitude values fall within proper ranges. When the controlling section determines that they fall within the proper ranges, a piece of detection information which is created based on the most recent first and second detection signals is supplied to a controller. On the other hand, when the controlling section determines that they do not fall within the proper ranges, the controlling section destroys the most recent first and second detection signals, and does not supply detection information to the controller. The invention provides a rotational angle detecting device for performing required controlling operations using detection signals output from the rotational detecting section which have been determined as being proper detection signals.
    • 旋转角度检测装置包括旋转检测部分,用于输出连接到旋转部件的转子旋转的正弦曲线第一和第二检测信号,用于更新和存储第一和第二检测信号的存储部分,以及控制 部分。 第一和第二检测信号具有恒定的幅度,具有相同的周期,并且具有相位输出的波长。 控制部分比较从旋转检测部分输出的最近的第一和第二检测信号的振幅值,并确定振幅值是否在适当范围内。 当控制部分确定它们落在适当范围内时,基于最近的第一和第二检测信号创建的一条检测信息被提供给控制器。 另一方面,当控制部判定为不在适当的范围内时,控制部破坏最近的第一和第二检测信号,不向控制器提供检测信息。 本发明提供了一种旋转角检测装置,用于使用已被确定为适当的检测信号的从旋转检测部分输出的检测信号来执行所需的控制操作。