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公开(公告)号：US06515474B1
公开(公告)日：2003-02-04
申请号：US09454801
申请日：1999-12-03
IPC分类号： G01B714
CPC分类号： G01D5/145
摘要： A displacement sensor includes a magnet assembly having a housing for mounting to one of first and second relatively moveable elements. A magnet assembly is mounted to one element and defines a longitudinal space having an axis along its length. The magnet assembly includes at least one magnet having a north and a south pole that supply fringing magnetic flux in the longitudinal space and a flux-shaping pole piece on each of the north and south poles. A magnetic field sensor assembly has a housing for mounting to the other of the first and second elements for movement along an axis in the space parallel to the magnet assembly. In one embodiment, each of the flux-shaping pole pieces has a pentagon shape in a plane of primary flux pattern, forming a first face confronting the longitudinal space between the first and second magnets. In another embodiment, the magnet is a cylindrical magnet adjacent the longitudinal space, and the first face of each flux-shaping pole piece is cylindrical and coaxial with the cylindrical magnet. Preferably, the pole piece has a frusto-conical face confronting the longitudinal space adjacent the cylindrical face.
摘要翻译： 位移传感器包括具有用于安装到第一和第二相对可移动元件中的一个的壳体的磁体组件。 磁体组件安装在一个元件上并且限定了沿其长度具有轴的纵向空间。 磁体组件包括至少一个具有北极和南极的磁体，其在纵向空间中提供边缘磁通量，并且在北极和南极中的每一个上具有磁通成形极片。 磁场传感器组件具有用于安装到第一和第二元件中的另一个的壳体，用于沿平行于磁体组件的空间中的轴线移动。 在一个实施例中，每个磁通成形极片在主要磁通图形的平面中具有五边形形状，形成面对第一和第二磁体之间的纵向空间的第一面。 在另一个实施例中，磁体是与纵向空间相邻的圆柱形磁体，并且每个磁通形成极片的第一面是圆柱形的，与圆柱形磁体同轴。 优选地，极片具有面向邻近圆柱面的纵向空间的截头圆锥形面。
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公开(公告)号：US06894659B2
公开(公告)日：2005-05-17
申请号：US10058476
申请日：2002-01-28
CPC分类号： G01F15/063 , H01Q1/12 , H01Q1/24 , H01Q9/30
摘要： The specification discloses a system for mounting a communications antenna and a solar panel on an explosion-proof housing that does not require the use of conduit ports of the explosion-proof housing. More particularly, a mast couples to the housing by way of a prescribed number of threads, the mast having a circular cross-section and an internal cavity extending along its axis. Wires extending from inside the explosion-proof housing through the mast couple to the radio antenna and the solar panel. The void within the internal diameter of the mast not occupied by the wires for the radio and solar panel is filled with a sealing compound rated for explosive environments.
摘要翻译： 本说明书公开了一种用于将通信天线和太阳能面板安装在不需要使用防爆壳体的导管端口的防爆壳体上的系统。 更具体地，桅杆通过规定数量的螺纹连接到壳体，桅杆具有圆形横截面和沿其轴线延伸的内部空腔。 电线从防爆外壳内部通过桅杆连接到无线电天线和太阳能电池板。 未被无线电和太阳能电池板的电线占据的桅杆的内径内的空隙填充有一个额定为爆炸性环境的密封剂。
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公开(公告)号：US06536469B2
公开(公告)日：2003-03-25
申请号：US09761427
申请日：2001-01-16
申请人： John P. Dilger , Donald P. Pepperling , Nile K. Dielschneider , James C. Hawkins , David E. Woollums
发明人： John P. Dilger , Donald P. Pepperling , Nile K. Dielschneider , James C. Hawkins , David E. Woollums
IPC分类号： F16K3700
CPC分类号： G01F1/363 , G01F1/383 , G01F1/40 , G01F1/42 , G05D16/2053 , G05D16/2093 , Y10T137/8242
摘要： A magnet assembly is disclosed for use with a magnetic flux sensor to provide a position sensor adapted to detect a position of a moveable member. The magnet assembly comprises a magnet housing defining an inner surface. A magnet is provided that is sized for insertion into the magnet housing and adapted for movement with the moveable member, the magnet having a north pole and a south pole, wherein the magnet generates a magnetic flux. A centering ring is positioned between the magnet and the magnet housing, the centering ring including a biased wall acting to center the magnet in the magnet housing.
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公开(公告)号：USD464582S1
公开(公告)日：2002-10-22
申请号：US29149424
申请日：2001-10-10
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