Vibration measuring device and method for measuring viscosity of fluid led inside pipe
    30.
    发明专利
    Vibration measuring device and method for measuring viscosity of fluid led inside pipe 有权
    振动测量装置及测量流体液晶管内部粘度的方法

    公开(公告)号:JP2008145444A

    公开(公告)日:2008-06-26

    申请号:JP2008022780

    申请日:2008-02-01

    Abstract: PROBLEM TO BE SOLVED: To provide a vibration measuring device for measuring the viscosity of a fluid, led inside a pipe which is constituted, at the same time, as being suited also for the measurement of mass flow rate and the density of the fluid, and to make the accuracy of viscosity measurements improved by means of a Coriolis mass flowmeter-densitometer.
    SOLUTION: The vibration measuring device includes a flow tube, having a lumen conducting a fluid which is clamped at an inlet end and an outlet end that can vibrate and which vibrates about a static position of rest, during operation to perform lateral deflections that cause periodic changes in the spatial position of the lumen. A sensor device forms a first sensor signal, representative of the inlet-side deflections of the flow tube, and a second sensor signal that indicates the outlet-side deflections of the flow tube; an excitation circuit forms exciting current, feeding an excitation arrangement. An evaluation circuit derives a density measured value that indicates the density of the fluid and derives a viscosity value that indicates the viscosity of the fluid, from at least one sensor signal and from the density measured value, on the basis of the excitation current.
    COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种用于测量在管内引导的流体的粘度的振动测量装置,该管同时构成适于测量质量流量和密度 流体,并通过科里奥利质量流量计 - 密度计提高粘度测量的精度。 解决方案:振动测量装置包括流动管,其在操作期间具有传导流体的内腔,所述流体在入口端处被夹持并且出口端可以在静止位置处振动并且在静止位置振动以执行横向偏转 这导致管腔的空间位置的周期性变化。 传感器装置形成表示流管的入口侧偏转的第一传感器信号和指示流管的出口侧偏转的第二传感器信号; 激励电路形成励磁电流,馈送激励装置。 评估电路导出指示流体密度的密度测量值,并根据激励电流从至少一个传感器信号和密度测量值导出指示流体粘度的粘度值。 版权所有(C)2008,JPO&INPIT

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