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However, a volumetric flow can be inferred from the mass flow measurement. These measurements are restricted to small diameters for flow tubes. However, this measurement technique results in high accuracy and high repeatability. Coriolis meters also have a fast response time. Coriolis meters need to be calibrated for temperature and pressure.
The mass flow of a U-shaped Coriolis flow meter is given as: Q m = K u − I u ω 2 2 K d 2 τ {\displaystyle Q_{m}={\frac {K_{u}-I_{u}\omega ^{2}}{2Kd^{2}}}\tau } where K u is the temperature dependent stiffness of the tube, K is a shape-dependent factor, d is the width, τ is the time lag, ω is the vibration frequency, and I u is the inertia ...
Brooks Instrument is a manufacturer of flow control and measurement equipment based in Hatfield, PA.It was a division of Emerson (NYSE:EMR) until December 31, 2007 when it was sold to American Industrial Partners Capital Fund IV (“AIP”) for approximately $100 million in cash.
Furthermore, a direct measure of the density of the fluid is obtained. Coriolis measurement can be very accurate irrespective of the type of gas or liquid that is measured; the same measurement tube can be used for hydrogen gas and bitumen without recalibration. [citation needed] Coriolis flowmeters can be used for the measurement of natural ...
There is a scarcity of theoretical models available to predict the errors reported by Coriolis meter in aforementioned conditions. Figure (8) showing Coriolis meter. Flow conditioners make no effect on meter accuracy while using wet gas due to the annular flow regime, which is not highly affected by flow conditioners.
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Schematic view of a flow sensor. An ultrasonic flow meter is a type of flow meter that measures the velocity of a fluid with ultrasound to calculate volume flow. Using ultrasonic transducers, the flow meter can measure the average velocity along the path of an emitted beam of ultrasound, by averaging the difference in measured transit time between the pulses of ultrasound propagating into and ...