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    • 7. 发明申请
    • Encoder
    • 编码器
    • US20070182406A1
    • 2007-08-09
    • US11597660
    • 2005-04-14
    • Kenichi YarimizuShinji NagasawaYoshiaki OnoNaoto Kobayashi
    • Kenichi YarimizuShinji NagasawaYoshiaki OnoNaoto Kobayashi
    • G01B7/30
    • G01D5/145G01D5/2457
    • To easily manufacture an encoder (1), in which N-poles (5) and S-poles (6) of magnets are arranged alternately in a circumferential direction and in which an unequal pitch portion (8) is provided in a part on a circumference, without using a magnetizing head of a special shape having an unequal pitch portion, the unequal pitch portion (8) is formed by arranging the N-poles (5) and the S-poles (6) at an equal pitch all over the circumference and then providing a part on the circumference with a shielding member (7) for shielding a magnetism, or the unequal pitch portion (8) is formed by arranging the N-poles (5) and the S-poles (6) at an equal pitch all over the circumference and then providing a part on the circumference with a cut portion.
    • 为了容易地制造编码器(1),其中磁体的N极(5)和S极(6)在圆周方向上交替地布置,并且在其中设置不等间距部分(8) 在不使用具有不等间距部分的特殊形状的磁化头的情况下,不等间距部分(8)通过将N极(5)和S极(6)以相等的间距排列在整个 圆周,然后在圆周上设置用于屏蔽磁性的屏蔽构件(7),或者通过将N极(5)和S极(6)布置在一个或多个上,形成不相等的节距部分(8) 在整个圆周上相等的间距,然后在圆周上提供具有切割部分的部分。