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5. 发明授权

US4088977A Contactless linear position sensor 失效
标题翻译：非接触线性位置传感器
公开(公告)号：US4088977A
公开(公告)日：1978-05-09
申请号：US764771
申请日：1977-02-02
申请人： Joseph H. Bowman, Jr. , Rand J. Eikelberger , Arnold M. Miller
发明人： Joseph H. Bowman, Jr. , Rand J. Eikelberger , Arnold M. Miller
IPC分类号： H01C10/00 , G01D5/22 , H01L43/02 , H01L43/08
CPC分类号： G01D5/2241
摘要： A contactless linear position sensor, or potentiometer, which has a linear output characteristic, is constructed with a pair of elongated, hollow cylindrical tubes which are made of magnetically saturable material and are aligned so that their axes form an angle of less than 180.degree., with both of said tubes having at least one conductive wire coupled therewith which is interconnected with the wire that is coupled with the other tube, and a moveable permanent magnet which is formed as a segment of a circular ring with a pair of straight sides that move adjacent to the tubes so that the total volume of the tubes that is magnetically saturated remains substantially constant while the inductance ratio of the tubes varies. The present invention is directed to a version of this type of contactless device which has improved temperature performance that is achieved by the use of a magnetically permeable pole piece positioned adjacent the moving magnet which is substantially the same shape as the magnet and the magnetically permeable flux enhancer which is positioned so that the tubes are located intermediate the flux enhancer and the moveable magnet.
摘要翻译：具有线性输出特性的非接触式线性位置传感器或电位计由一对细长的中空圆柱形管构成，该管由磁性可饱和材料制成，并被对准使得它们的轴线形成小于180°的角度，其中两个所述管都具有与其连接的至少一个导线，其与与另一个管耦合的导线互连;以及可移动永磁体，其形成为圆环的一段，所述一对直线侧向移动相邻于管，使得磁饱和的管的总体积保持基本恒定，同时管的电感比变化。本发明涉及这种类型的非接触式装置的版本，其具有改善的温度性能，其通过使用与磁体大致相同的形状定位在与磁体相同的磁体和导磁通量增强器被定位成使得管位于通量增强器和可移动磁体之间。

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