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公开(公告)号：US5760310A
公开(公告)日：1998-06-02
申请号：US770916
申请日：1996-12-20
CPC分类号： G01L19/0672 , G01L19/0092 , G01L19/0645 , G01M3/16
摘要： A pressure transmitter has a pressure sensor coupled to an isolator diaphragm by a fill fluid such as oil. According to the invention, means are provided for measuring the position of the isolator diaphragm and comparing the measured position with an expected position to give an indication of fill fluid leakage. Non-contact arrangements such as capacitive and ultrasonic techniques are disclosed for measuring isolator diaphragm position, as well as contacting arrangements such as switches. The fill fluid loss arrangement can be incorporated into a two-wire transmitter, which transmitter can be made to send a warning signal to a control unit when fill fluid loss is detected.
摘要翻译： 压力变送器具有通过诸如油的填充液体耦合到隔离膜的压力传感器。 根据本发明，提供了用于测量隔离膜片的位置并将测量位置与预期位置进行比较的装置，以给出填充流体泄漏的指示。 公开了诸如电容和超声波技术的非接触布置用于测量隔离膜的位置以及诸如开关的接触布置。 填充流体损失布置可以并入双线式发射器中，当检测到填充液体损失时，该发射器可以被发送给控制单元的警告信号。
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公开(公告)号：US06675658B2
公开(公告)日：2004-01-13
申请号：US09940270
申请日：2001-08-27
IPC分类号： G01L700
CPC分类号： F16K27/0263 , G01L19/0015 , Y10T137/87249 , Y10T137/87885
摘要： A manifold includes a body having generally planar inlet surface. The inlet surface includes a first inlet and a second inlet adapted for coupling to a pressurized process fluid. An outlet surface on the manifold is adapted for coupling to a co-planar transmitter and is at angle relative to the inlet surface. The manifold includes an equalizing valve surface opposite the outlet surface, and a perimeter therebetween. The outlet surface includes first and second outlets in fluid communication with the first and second inlets, respectively.
摘要翻译： 歧管包括具有大致平坦的入口表面的主体。 入口表面包括适于联接到加压工艺流体的第一入口和第二入口。 歧管上的出口表面适于联接到共面发射器并且相对于入口表面成角度。 歧管包括与出口表面相对的均衡阀表面和它们之间的周长。 出口表面分别包括与第一和第二入口流体连通的第一和第二出口。
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公开(公告)号：US5248167A
公开(公告)日：1993-09-28
申请号：US909732
申请日：1992-07-07
IPC分类号： G01L19/00
CPC分类号： G01L19/0015
摘要： An assembly for aligning and supporting an adapter flange for connecting fluid pressures to a pressure sensor body in place on the body and to keep the flange in an unsealed condition to prevent pressurizing the body and flange until installation of permanent fasteners. The support fasteners keep the flange oriented in its normal usable position, but the fasteners retain the flange spaced from the body sufficiently so that the flange will not seal. This will prevent accidentally pressurizing the flange and pressure sensor body until permanent fasteners have been installed. The pressure sensor body is provided with threaded openings for receiving permanent fasteners and the body and flange are shipped with at least one extra set of permanent fasteners different in length from the fasteners used on the flange to permit adding adapters for a process correction. The threaded openings in the body are counter bored an amount selected so that when a different thickness adapted is used for process correction, only the correct length fasteners will be capable of being threaded into the body bores.
摘要翻译： 用于对准和支撑适配器凸缘的组件，用于将流体压力连接到位于本体上的压力传感器主体，并将凸缘保持在非密封状态，以防止加压主体和凸缘，直到安装永久紧固件。 支撑紧固件保持凸缘定位在其正常可使用位置，但是紧固件将凸缘保持足够的距离，使得凸缘不会被密封。 这将防止意外加压法兰和压力传感器主体，直到安装永久性紧固件。 压力传感器主体设置有用于接收永久性紧固件的螺纹开口，并且主体和凸缘运送有至少一组额外的永久性紧固件，其长度与法兰上使用的紧固件的长度不同，以允许加工用于过程校正的适配器。 身体中的螺纹开口被反向钻孔，所选择的量使得当适合的不同厚度用于过程校正时，只有正确长度的紧固件才能够被穿入身体孔中。
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公开(公告)号：US06568278B2
公开(公告)日：2003-05-27
申请号：US10047921
申请日：2001-10-23
IPC分类号： G01L700
CPC分类号： G01L19/0007
摘要： An in-line pressure transmitter for sensing an absolute or gage process pressure of a process fluid includes an in-line process coupling. The coupling has a mounting member which includes a substantially flat mounting face and a bore generally aligned with an isolation diaphragm assembly. The member is configured to mount to a flat process coupling.
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公开(公告)号：US6009758A
公开(公告)日：2000-01-04
申请号：US974614
申请日：1997-11-19
CPC分类号： F16K27/0263 , G01L19/0015 , Y10T137/87249 , Y10T137/87885
摘要： A manifold includes a body having generally planar inlet surface. The inlet surface includes a first inlet and a second inlet adapted for coupling to a pressurized process fluid. An outlet surface on the manifold is adapted for coupling to a co-planar transmitter and is at angle relative to the inlet surface. The manifold includes an equalizing valve surface opposite the outlet surface, and a perimeter therebetween. The outlet surface includes first and second outlets in fluid communication with the first and second inlets, respectively.
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公开(公告)号：US5028746A
公开(公告)日：1991-07-02
申请号：US401090
申请日：1989-08-31
申请人： William E. Petrich
发明人： William E. Petrich
CPC分类号： H02G11/02
摘要： A cable protector comprises a cylindrical reel sleeve having an opening in the side wall, and one open end. A cable that is loosely, helically wound around a central axis to form a coil is inserted into the sleeve with one connector of the cable extending out through the bottom, and the other connector of the cable either retained in the interior of the sleeve or passing out through the opening of the side wall for connection to a second circuit board. The reel sleeve protects the helically wound cable from external damage, and the connector from the center can be coupled to a circuit board in a first transmitter housing, and retained in the protector to prevent damage to the cable during assembly of the housings. A second transmitter housing mounts a shroud that rotatably mounts the reel sleeve holding the cable, so that when the two transmitter housing sections are threaded together, the sleeve containing the wound cable will be guided into the shroud and will be permitted to rotate therein without damaging or twisting the cable as the two housing parts are threaded together or repositioned.
摘要翻译： 电缆保护器包括在侧壁中具有开口的圆柱形卷轴套和一个开口端。 松动地缠绕在中心轴线上以形成线圈的电缆被插入到套筒中，电缆的一个连接器延伸穿过底部，并且电缆的另一个连接器保持在套筒的内部或通过 通过侧壁的开口出来连接到第二电路板。 卷轴套保护螺旋卷绕的电缆免受外部损坏，并且来自中心的连接器可以耦合到第一变送器壳体中的电路板，并且保持在保护器中，以防止在组装壳体期间损坏电缆。 第二发射器壳体安装护罩，其可旋转地安装保持电缆的卷轴套筒，使得当两个变送器壳体部分螺纹连接在一起时，容纳缠绕电缆的套筒将被引导到护罩中，并且将被允许在其中旋转而不损坏 或者当两个壳体部分被拧在一起或重新定位时扭转电缆。
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公开(公告)号：US06389904B1
公开(公告)日：2002-05-21
申请号：US09473840
申请日：1999-12-28
IPC分类号： G01L700
CPC分类号： F16K27/0263 , G01L19/0015 , Y10T137/87249 , Y10T137/87885
摘要： A manifold includes a body having generally planar inlet surface. The inlet surface includes a first inlet and a second inlet adapted for coupling to a pressurized process fluid. An outlet surface on the manifold is adapted for coupling to a co-planar transmitter and is at angle relative to the inlet surface. The manifold includes an equalizing valve surface opposite the outlet surface, and a perimeter therebetween. The outlet surface includes first and second outlets in fluid communication with the first and second inlets, respectively.
摘要翻译： 歧管包括具有大致平坦的入口表面的主体。 入口表面包括适于联接到加压工艺流体的第一入口和第二入口。 歧管上的出口表面适于联接到共面发射器并且相对于入口表面成角度。 歧管包括与出口表面相对的均衡阀表面和它们之间的周长。 出口表面分别包括与第一和第二入口流体连通的第一和第二出口。
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