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    • 1. 发明申请
    • DENSITOMETER WITH PULSING PRESSURE
    • 带脉冲压力的密度计
    • WO2005059511A2
    • 2005-06-30
    • PCT/US2004041432
    • 2004-12-13
    • INVENSYS SYS INCMATTAR WADE MVIGNOS JAMES H
    • MATTAR WADE MVIGNOS JAMES H
    • G01F1/84G01N9/00G01N9/26G01N33/28G01N
    • G01F1/8436G01F1/8486G01F1/849G01N9/002G01N9/26
    • Techniques for measuring a density of a liquid within a fluid that includes both a liquid and a gas are described. A pressure of the fluid oscillates according to a time-varying function, which causes a density of the fluid also to oscillate according to the same time-varying function (235, 404). A resulting pressure signal (302) and density signal (304) are analyzed to extract at least a first and second pressure value (225, 245) and at least a first and second density value (205, 240), (410), where the first pressure and density values occur at a first time, and the second pressure and density values occur at a second time. Then, the liquid density is calculated from the first and second pressure and density values (250, 414). As a result, the liquid density may be calculated quickly and easily, with a minimum of effort on the part of an operator, and without requiring disruption of other measurement processes associate with the flowtube.
    • 描述了用于测量包括液体和气体的流体内的液体的密度的技术。 流体的压力根据时变功能振荡,这导致流体的密度也根据相同的时变功能振荡(235,404)。 分析所得到的压力信号(302)和密度信号(304)以提取至少第一和第二压力值(225,245)和至少第一和第二密度值(205,240)(410),其中 第一压力和密度值在第一时间出现,第二压力和密度值在第二时间出现。 然后,从第一和第二压力和密度值(250,414)计算液体密度。 结果,可以以最小的操作者的努力快速且容易地计算液体密度,并且不需要与流管相关联的其他测量过程的中断。
    • 5. 发明申请
    • TWO-PHASE STEAM MEASUREMENT SYSTEM
    • 两相蒸汽测量系统
    • WO2004099731A3
    • 2005-04-21
    • PCT/US2004013800
    • 2004-05-04
    • INVENSYS SYS INCDUTTON ROBERT EMATTAR WADE M
    • DUTTON ROBERT EMATTAR WADE M
    • G01F20060101G01F1/74G01F1/84G01F15/02G01F15/04G01F15/08G01N9/00
    • G01F1/8468G01F1/74G01F15/024G01F15/046G01F15/08G01N9/002
    • A steam measurement system includes a Coriolis flowmeter (440, 540, 640) associated with a vibratable flowtube (410, 510, 610) to receive a flow of wet steam. A first sensor is associated with the flowtube to relay information about a motion of the flowtube by way of a first sensor signal. A second sensor determines a property of the flow and relays the property by way of a second sensor signal. A computing device (440, 540, 640) receives the first and second sensor signals and is configured to calculate a steam quality of the flow from the first and second sensor signals (700). The computing device also may calculate the total heat energy flow rate of the flow (800). Other implementations may include a full or partial separator (920) to separate the flow of wet steam into a substantially gas flow and a substantially liquid flow, and a second Coriolis meter (960a, 960b).
    • 蒸汽测量系统包括与可振动流管(410,510,610)相关联的科里奥利流量计(440,540,640),以接收湿蒸汽流。 第一传感器与流管相关联,以通过第一传感器信号中继关于流管的运动的信息。 第二传感器确定流量的属性并通过第二传感器信号中继该属性。 计算设备(440,540,640)接收第一和第二传感器信号,并且被配置为从第一和第二传感器信号(700)计算流的蒸汽质量。 计算装置还可以计算流量的总热能流量(800)。 其它实施方案可以包括将湿蒸汽流分解为基本气体流和基本上液体流的全部或部分分离器(920)和第二科里奥利计(960a,960b)。
    • 6. 发明申请
    • FLOWMETER ZEROING TECHNIQUES
    • 流量计零点技术
    • WO2004092680A2
    • 2004-10-28
    • PCT/US2004009916
    • 2004-03-30
    • INVENSYS SYS INCMATTAR WADE M
    • MATTAR WADE M
    • G01F1/74G01F1/84G01F25/00G01D
    • G01F1/8436G01F1/74G01F1/8486G01F1/849G01F25/00G01N9/002
    • Descriptions are provided for implementing flowmeter zeroing techniques. In operating a flowmeter (200), it may be the case that, if not properly calibrated, the flowmeter (200) will produce erroneous measurements, e.g., will indicate a non-zero flow during a period of zero flow. By determining a magnitude of such erroneous measurements, calibration values (402, 404, 406) may be determined (602), which may later be used to adjust a measurement that is output by the flowmeter (200) and thereby improve an accuracy of the flowmeter (200). Such calibration values (402, 404, 406) may be determined for a plurality of operational conditions associated with the flowmeter, such as densities of materials being measured, and/or configurations of flow elements associated with transporting material to the flowmeter (604, 606). Then, the calibration values (402, 404, 406) may be correlated with the relevant operational conditions, and stored for later use (608). In this way, during an actual operation (618) of the flowmeter (200), a number of calibration values may be made available, and an optimal calibration value may be selected (612) for an existing operational condition of the flowmeter (200).
    • 提供了实现流量计归零技术的说明。 在操作流量计(200)时,如果没有正确校准,流量计(200)将产生错误的测量,例如在零流量期间将指示非零流量的情况。 通过确定这种错误测量的大小,可以确定校准值(402,404,406)(602),其稍后可用于调节由流量计(200)输出的测量值,从而提高 流量计(200)。 可以针对与流量计相关联的多个操作条件(例如被测量的材料的密度)和/或与将材料输送到流量计(604,606)相关联的流动元件的配置来确定这样的校准值(402,404,406) )。 然后,可以将校准值(402,404,406)与相关的操作条件相关联,并存储以备以后使用(608)。 以这种方式,在流量计(200)的实际操作(618)期间,可以使许多校准值可用,并且可以为流量计(200)的现有操作条件选择最佳校准值(612) 。