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    • 2. 发明授权
    • LCD design for cold temperature operation
    • LCD设计用于冷温运行
    • US08570260B2
    • 2013-10-29
    • US11992578
    • 2006-10-19
    • Robert C. HedtkeVladimir Victorovich Repyevskiy
    • Robert C. HedtkeVladimir Victorovich Repyevskiy
    • G09G3/36
    • G09G3/36G09G3/3696G09G2310/04G09G2320/041G09G2340/0435
    • A method (200) of controlling a liquid crystal display (LCD) (110) integrated within a sensing device for operation in cold temperature is provided. The method (200) includes providing electrical power to the LCD (110), providing an electrical signal to the LCD (110) to update displayed information, measuring (206) the ambient temperature proximate the LCD (110) and making adjustments to the power and update information supplied to the LCD (110) based on the ambient temperature. Another aspect of the invention includes a field device (10) including an LCD (110), an electronic control module (120) configured to provide power and communication signals to the LCD (110), and a temperature sensor (112) coupled to the electronic control module (120). The electronic control module (120) is configured to measure the temperature proximate the LCD (110) and control power and communication supplied to the LCD (110) based on the temperature at the LCD (110).
    • 提供一种控制液晶显示器(LCD)(110)的方法(200),该液晶显示器(110)集成在感测装置内以在低温下操作。 方法(200)包括向LCD(110)提供电力,向LCD(110)提供电信号以更新显示的信息,测量(206)接近LCD(110)的环境温度并对功率进行调整 以及基于环境温度更新提供给LCD(110)的信息。 本发明的另一方面包括现场设备(10),包括LCD(110),被配置为向LCD(110)提供电力和通信信号的电子控制模块(120)以及耦合到所述LCD 电子控制模块(120)。 电子控制模块(120)被配置为基于LCD(110)处的温度来测量靠近LCD(110)的温度并控制提供给LCD(110)的电力和通信。
    • 9. 发明授权
    • Multiphase flowmeter with batch separation
    • 多相流量计具有批量分离
    • US08516900B2
    • 2013-08-27
    • US13102256
    • 2011-05-06
    • Roger K. PihlajaKelli K. LaisMorgan B. ImpolaIsaac RemerBrian J. Sames
    • Roger K. PihlajaKelli K. LaisMorgan B. ImpolaIsaac RemerBrian J. Sames
    • G01F1/74
    • G01F1/74G01F15/08Y10T137/8175
    • A process fluid flow system is provided having an input, an output, and a plurality of fluid circuits disposed between the input and output. At least one valve is disposed to selectably cause process fluid to flow through either a first circuit of the plurality of circuits, or a second circuit of the plurality of circuits. Process fluid flows through the first circuit during normal production, and through the second circuit during process fluid sequestration. A process fluid flow measurement device is operably interposed between the input and output and configured to measure total flow through the system. A separator is disposed in the second circuit and is arranged to allow the process fluid to separate gravitationally over time into immiscible components of the process fluid, the separator having a known internal volume. A guided wave radar level measurement device is preferably disposed to measure heights of interfaces within the separator. A controller is coupled to at least one valve, the process fluid flow measurement system, and the guided wave radar level measurement device. The controller is configured to combine total process fluid flow information from the process fluid flow measurement device with measured height information from the guided wave level measurement device to provide fractional flow rates for at least one immiscible component of the process fluid.
    • 提供了具有设置在输入和输出之间的输入,输出和多个流体回路的过程流体流动系统。 设置至少一个阀门可选地使工艺流体流过多个回路中的第一回路或多个回路中的第二回路。 过程流体在正常生产期间流过第一回路,并且在过程流体隔离期间通过第二回路流动。 过程流体流量测量装置可操作地插入在输入和输出之间并被配置成测量通过系统的总流量。 分离器设置在第二回路中并且被布置成允许过程流体随时间重力地分离成过程流体的不混溶组分,分离器具有已知的内部体积。 优选地设置导波雷达液位测量装置以测量分离器内的界面的高度。 控制器耦合到至少一个阀,过程流体流量测量系统和导波雷达液位测量装置。 控制器被配置为将来自过程流体流量测量装置的总工艺流体流量信息与来自导波水平测量装置的测量的高度信息组合,以提供过程流体的至少一个不混溶组分的分数流量。