公开(公告)号：US09052225B2

公开(公告)日：2015-06-09

申请号：US13682844

申请日：2012-11-21

Applicant: Endress + Hauser Flowtec AG

Inventor： Martin Anklin-Imhof ,  Ennio Bitto ,  Christof Huber ,  Alfred Rieder ,  Michael Kirst

IPC: G01F1/84 ,  G01F15/02 ,  G01N11/16

CPC classification number: G01F1/8495 ,  G01F1/8409 ,  G01F1/8413 ,  G01F1/8431 ,  G01F1/8436 ,  G01F15/024 ,  G01N11/16

Abstract: A method for determining the viscosity of a medium with a Coriolis mass flowmeter having at last two measuring tubes through which a medium can flow, comprising: exciting the measuring tubes; and determining at least the viscosity of the medium by evaluation of measured values obtained from the measuring device. The measuring values comprise the amplitude of torsional oscillation reached, wherein the amplitude of torsional oscillation reached is evaluated for determining the viscosity of the medium at a set excitation intensity of the measuring device and using the damping coefficient of the medium.

Abstract translation: 一种用科里奥利质量流量计确定介质粘度的方法，其具有最后两个测量管，介质可以通过该测量管流动，包括：激发测量管; 并且通过评估从测量装置获得的测量值来确定介质的至少粘度。 测量值包括达到的扭转振荡的振幅，其中评估达到的扭转振动的振幅以确定在测量装置的设定激发强度下介质的粘度并使用介质的阻尼系数。

公开(公告)号：US20130133436A1

公开(公告)日：2013-05-30

申请号：US13682844

申请日：2012-11-21

Applicant: Endress + Hauser Flowtec AG

Inventor： Martin Anklin-Imhof ,  Ennio Bitto ,  Christof Huber ,  Alfred Rieder ,  Michael Kirst

IPC: G01F1/84

CPC classification number: G01F1/8495 ,  G01F1/8409 ,  G01F1/8413 ,  G01F1/8431 ,  G01F1/8436 ,  G01F15/024 ,  G01N11/16

Abstract: The measuring system comprises: a measuring transducer, for producing oscillatory signals dependent on a viscosity of the flowing medium and/or a Reynolds number of the flowing medium; transmitter electronics for driven the measuring transducer and for evaluating oscillatory signals delivered by the measuring transducer. The measuring transducer includes: an inlet-side flow divider; an outlet-side flow divider; at least two, mutually parallel, straight, measuring tubes, connected to the flow dividers; and an electromechanical exciter mechanism for exciting and maintaining mechanical oscillations of the two measuring tubes. Each of the two measuring tubes opens with an inlet-side measuring tube end into a flow opening and with an outlet-side. The transmitter electronics feeds, by means of an electrical driver signal supplied to the exciter mechanism, electrical excitation power into the exciter mechanism, while the exciter mechanism converts electrical excitation power partially into opposite-equal torsional oscillations of the at least two measuring tubes.

Abstract translation: 测量系统包括：测量传感器，用于根据流动介质的粘度和/或流动介质的雷诺数产生振荡信号; 用于驱动测量传感器并用于评估由测量传感器传递的振荡信号的变送器电子装置。 测量传感器包括：入口侧分流器; 出口侧分流器; 连接到分流器的至少两个相互平行的直的测量管; 以及用于激发和保持两个测量管的机械振荡的机电激励器机构。 两个测量管中的每一个打开，入口侧测量管端部进入流动开口并具有出口侧。 发射器电子装置通过提供给激励器机构的电驱动器信号将电激励功率馈送到激励机构中，而激励器机构将电激励功率部分地转换成至少两个测量管的相等的扭转振荡。