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公开(公告)号：US5955684A
公开(公告)日：1999-09-21
申请号：US779321
申请日：1997-01-06
IPC分类号： G01F23/26 , G01F23/284 , H01R13/52 , H01R13/527 , H01R13/622 , G01D21/00
CPC分类号： H01R13/527 , G01F23/268 , G01F23/284 , H01R13/5221 , H01R13/622
摘要： A modular probe that is used for determining levels in a process material container, bins, pipes, using capacitance, micro impulse radar, or other types of signals, and which has a self contained pressure seal in the probe. The probe mounts to a connector that has an explosion proof barrier. The connector in turn supports a transmitter housing, which can be made explosion proof as well. The probe is coupled to the connector in a manner so that they can be easily separated and replaced without altering the explosion proof barrier. An independent seal on the probe itself permits the probe to be installed in a tank prior to the transmitter installation, and the transmitter may be uncoupled from the connector and replaced with a new transmitter without affecting the explosion proof portion of the assembly. The transmitter housing may also be removed or replaced from service without disassembly of the housing while the probe remains installed in a tank or other location undisturbed until the transmitter is replaced. Further, an environmental seal between the probe and the connector may be replaced without removing the transmitter housing from the connector so the explosion proof barrier for the transmitter housing remains effective.
摘要翻译： 用于确定过程材料容器，箱体，管道，使用电容，微型脉冲雷达或其他类型信号中的水平的模块式探头，并且在探头中具有自我包含的压力密封。 探头安装在具有防爆屏障的连接器上。 连接器又支撑变送器外壳，也可以防爆。 探针以一定的方式连接到连接器，使得它们可以容易地分离和更换，而不改变防爆屏障。 探头上的独立密封件本身允许在发射器安装之前将探头安装在罐中，并且变送器可以从连接器脱离，并用新的变送器替换，而不影响组件的防爆部分。 变送器外壳也可以在不拆卸外壳的情况下拆卸或更换，同时探头保持安装在坦克或其他位置不受干扰，直到变送器更换。 此外，可以更换探针和连接器之间的环境密封，而不需要从连接器移除变送器外壳，因此用于变送器外壳的防爆屏障保持有效。
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公开(公告)号：US06722927B1
公开(公告)日：2004-04-20
申请号：US10446457
申请日：2003-05-28
IPC分类号： H01R13405
CPC分类号： G01L19/0084 , H01R12/714 , H01R13/504 , H01R13/6595 , H01R13/6683
摘要： An electrical connector protects a pressure sensor stem that protrudes from a pressure sensor capsule. The electrical connector includes a baseplate with a central hole and a peripheral wall joined to the baseplate and protruding below the baseplate. The peripheral wall slidingly engages the pressure sensor capsule as the pressure sensor stem passes through the central hole to protrude above the baseplate. A protective wall joined to the baseplate protrudes above the pressure sensor stem and protects the pressure sensor stem. A lead frame in the protective wall provides electrical connections to sensor contact pads on the pressure sensor stem.
摘要翻译： 电连接器保护从压力传感器胶囊突出的压力传感器杆。 电连接器包括具有中心孔的基板和连接到基板并突出在基板下方的周壁。 当压力传感器杆通过中心孔突出到基板上方时，周壁滑动地接合压力传感器胶囊。 连接到基板的保护壁突出在压力传感器杆的上方，并保护压力传感器杆。 保护墙中的引线框架提供与压力传感器杆上传感器接触垫的电气连接。
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公开(公告)号：US6148681A
公开(公告)日：2000-11-21
申请号：US322727
申请日：1999-05-28
IPC分类号： G01F23/26 , G01F23/284 , H01R13/52 , H01R13/527 , H01R13/622
CPC分类号： H01R13/527 , G01F23/268 , G01F23/284 , H01R13/5221 , H01R13/622
摘要： A process seal assembly adapted for installation to a process vessel opening. A probe with a probe connector connects to a rod inside a passageway of a housing adapted to be sealingly mounted to the process vessel opening. The rod has a first end coupled to the probe connector and a second end adapted to couple with a transmitter connector body. A rigid, electrically insulating spool is fastened in the passageway, with an outer spool surface fitting tightly to a wall of the passageway and an axial hole fitting tightly to the rod.
摘要翻译： 适于安装到处理容器开口的过程密封组件。 具有探针连接器的探头连接到适于密封地安装到处理容器开口的壳体的通道内的杆。 杆具有联接到探针连接器的第一端和适于与发射器连接器主体耦合的第二端。 刚性的，电绝缘的线轴被紧固在通道中，外部的卷轴表面紧密地配合到通道的壁上，并且轴向孔紧紧地配合到杆上。
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公开(公告)号：US06325391B1
公开(公告)日：2001-12-04
申请号：US09301419
申请日：1999-04-28
IPC分类号： F16J1508
CPC分类号： G01F23/292 , G01F23/284 , Y10S277/92
摘要： A process seal made of a material such as polytetrafluoroethylene is used as a microwave window in a radar tank level gauge. The periphery of the process seal is surrounded by a metal containment ring that is fitted to the periphery to limit the amount of expansion outwardly of the process seal material as well as provide for localized loading at the periphery for clamping pressures on the seal. Electromagnetic radiation shielding is provided not only by the containment ring, but also by an EMI shielding O-ring mounted in a groove on a sealing end of the containment ring. A process environmental O-ring is carried by the process seal in an outer shoulder groove that is enclosed by the containment ring.
摘要翻译： 由诸如聚四氟乙烯的材料制成的工艺密封件用作雷达罐液位计中的微波窗口。 工艺密封件的周边由金属容纳环围绕，该金属容纳环被安装到外围以限制处理密封材料向外的膨胀量，并且在周边处提供用于夹紧密封件上的压力的局部加载。 电磁辐射屏蔽不仅由容纳环提供，还通过安装在安全壳密封端的槽中的EMI屏蔽O形环来提供。 工艺环境O型圈由处理密封件承载在由容纳环包围的外肩槽中。
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5.发明授权
公开(公告)号：US5872494A
公开(公告)日：1999-02-16
申请号：US884536
申请日：1997-06-27
申请人： Donald Palan , Dennis Smith , Randall C. Olson
发明人： Donald Palan , Dennis Smith , Randall C. Olson
IPC分类号： G01F23/284 , G01S13/88 , H01P1/08
CPC分类号： G01F23/284 , G01S13/88
摘要： A waveguide assembly for a process sealed level gage includes first and second waveguide portions, a process sealing cavity and a mechanical barrier. The first waveguide portion has a first waveguide bore. The second waveguide portion is fastened to the first waveguide portion and has a second waveguide bore which is axially aligned with the first waveguide bore for communicating microwave signals at a waveguide wavelength .lambda..sub.G between the waveguide bores. The process sealing cavity is formed at an interface between the first and second waveguide portions. The mechanical barrier includes a first shaft section positioned within the first waveguide portion, a second shaft section positioned within the second waveguide portion and a raised annular shoulder positioned at the interface, within the process sealing cavity. The raised annular shoulder has a width, which is measured radially outward from an outside diameter of the shaft sections, of approximately 1/2 .lambda..sub.G and a height, which is measured axially between the first and second waveguide portions, of approximately 1/4 .lambda..sub.G.
摘要翻译： 用于过程密封电平计的波导组件包括第一和第二波导部分，工艺密封腔和机械屏障。 第一波导部分具有第一波导孔。 第二波导部分被固定到第一波导部分并且具有与第一波导孔轴向对准的第二波导孔，用于在波导孔之间的波导波长λG处传送微波信号。 工艺密封腔形成在第一和第二波导部分之间的界面处。 机械屏障包括位于第一波导部分内的第一轴部分，位于第二波导部分内的第二轴部分和位于处理密封腔内的界面处的凸起环形肩部。 凸起的环形肩部具有从轴部分的外径径向向外测量的大约+ E，fra 1/2 + EEλG的宽度和在第一和第二波导部分之间轴向测量的高度 ，约+ E，fra 1/4 + EEλG.
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