Wireless power and communication unit for process field devices
    1.
    发明授权
    Wireless power and communication unit for process field devices 有权
    用于过程现场设备的无线电源和通信单元

    公开(公告)号:US08538560B2

    公开(公告)日:2013-09-17

    申请号:US10850828

    申请日:2004-05-21

    摘要: A wireless power and communication unit for field devices is configured to connect to a field device and provide operating power and wired digital communication between the unit and the field device. RF circuitry in the unit is configured for radio frequency communication. In one embodiment, power supply circuitry in the unit includes one or more solar power cells that convert solar energy into electricity to power both the unit and the field device. The unit interacts with the field device in accordance with a standard industry communication protocol. The unit communicates wirelessly with an external device, such as a control room, based upon the interaction with the field device.

    摘要翻译: 用于现场设备的无线电力和通信单元被配置为连接到现场设备并且在单元和现场设备之间提供操作功率和有线数字通信。 单元中的RF电路配置为射频通信。 在一个实施例中,该单元中的电源电路包括将太阳能转换成电以为单元和现场设备供电的一个或多个太阳能电池。 该单元根据标准的行业通信协议与现场设备进行交互。 基于与现场设备的交互,该单元与外部设备(例如控制室)进行无线通信。

    Wireless power and communication unit for process field devices
    2.
    发明申请
    Wireless power and communication unit for process field devices 有权
    用于过程现场设备的无线电源和通信单元

    公开(公告)号:US20050245291A1

    公开(公告)日:2005-11-03

    申请号:US10850828

    申请日:2004-05-21

    摘要: A wireless power and communication unit for field devices is configured to connect to a field device and provide operating power and wired digital communication between the unit and the field device. RF circuitry in the unit is configured for radio frequency communication. In one embodiment, power supply circuitry in the unit includes one or more solar power cells that convert solar energy into electricity to power both the unit and the field device. The unit interacts with the field device in accordance with a standard industry communication protocol. The unit communicates wirelessly with an external device, such as a control room, based upon the interaction with the field device.

    摘要翻译: 用于现场设备的无线电力和通信单元被配置为连接到现场设备并且在单元和现场设备之间提供操作电力和有线数字通信。 单元中的RF电路配置为射频通信。 在一个实施例中,该单元中的电源电路包括将太阳能转换成电以为单元和现场设备供电的一个或多个太阳能电池。 该单元根据标准的行业通信协议与现场设备进行交互。 基于与现场设备的交互,该单元与外部设备(例如控制室)进行无线通信。

    Field device including a capillary tube having a non-cylindrical lumen
    3.
    发明授权
    Field device including a capillary tube having a non-cylindrical lumen 有权
    现场设备包括具有非圆柱形管腔的毛细管

    公开(公告)号:US07681456B2

    公开(公告)日:2010-03-23

    申请号:US12142919

    申请日:2008-06-20

    申请人: George Hausler

    发明人: George Hausler

    IPC分类号: G01L9/00

    CPC分类号: G01L19/0663 H05K7/1462

    摘要: In a particular embodiment, a field device is disclosed that includes a housing defining a fluid cavity and a sensor cavity and having an isolation barrier to isolate the fluid cavity from the sensor cavity. The field device further includes a pressure sensor disposed within the sensor cavity. The pressure sensor includes at least one pressure inlet. The field device also includes a capillary tube extending from the at least one pressure inlet to the fluid cavity through the isolation barrier. The capillary tube includes a lumen having a non-cylindrical shape.

    摘要翻译: 在特定实施例中,公开了一种现场设备,其包括限定流体空腔和传感器腔的壳体,并且具有用于将流体空腔与传感器腔隔离的隔离屏障。 现场设备还包括设置在传感器腔内的压力传感器。 压力传感器包括至少一个压力入口。 现场设备还包括毛细管,该毛细管通过隔离屏障从至少一个压力入口延伸到流体腔。 毛细管包括具有非圆柱形形状的内腔。