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公开(公告)号：US20140195173A1
公开(公告)日：2014-07-10
申请号：US14235950
申请日：2012-07-23
IPC分类号： G01F1/66
CPC分类号： G01F1/66
摘要： A method for ascertaining flow of a fluid, which is a gas mixture, through a circularly cylindrical measuring tube having a straight, measuring tube, longitudinal axis and an inner diameter DI, wherein at least one component of the gas mixture is a hydrocarbon. The steps comprise: ascertaining a first average flow velocity vL by means of travel-time difference measurement of acoustic signals along a signal path; ascertaining a modified Reynolds number Remod according to the formula Remod=(vL*DI)/vkin, wherein the kinematic viscosity vkin of the fluid is known; and ascertaining a second average flow velocity vA by means of a known function vA=f(Remod) as a function of the modified Reynolds number Remod, wherein the method step of ascertaining the modified Reynolds number Remod precedes the method step of ascertaining the kinematic viscosity vkin of the fluid.
摘要翻译： 通过具有直的，测量管，纵向轴线和内径DI的圆形圆柱形测量管确定作为气体混合物的流体的流动的方法，其中气体混合物的至少一种组分是烃。 步骤包括：通过沿着信号路径的声信号的行进 - 时间差测量来确定第一平均流速vL; 根据公式Remod =（vL * DI）/ vkin确定修改的雷诺数Remod，其中流体的运动粘度vkin是已知的; 并且通过已知函数vA = f（Remod）确定作为修改的雷诺数Remod的函数的第二平均流速vA，其中确定修改的雷诺数Remod的方法步骤先于确定运动粘度的方法步骤 流体的液体。
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公开(公告)号：US08375807B2
公开(公告)日：2013-02-19
申请号：US12949380
申请日：2010-11-18
IPC分类号： G01F1/20
摘要： A measuring device for registering at least one measured value of at least one process variable. The measuring device comprises a measuring tube. The measuring tube has at least one T-joint, on which at least one measurement transmitter is arranged, wherein the measuring tube together with the T-joint is monolithic, and wherein the T-joint is producible from the measuring tube at least partially by a plastic deformation method.
摘要翻译： 一种用于记录至少一个过程变量的至少一个测量值的测量装置。 测量装置包括测量管。 所述测量管具有至少一个T形接头，其上布置有至少一个测量传感器，其中所述测量管与所述T形接头一起是整体的，并且其中所述T形接头可从所述测量管至少部分地由 塑性变形法。
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