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Vibratory flow meter with multichannel flow tube

A multi-channel, flowmeter technology, used in direct mass flowmeters, mass flow measurement devices, measuring flow/mass flow, etc., and can solve problems such as unsuitable flowmeter sizes

Active Publication Date: 2020-03-31
MICRO MOTION INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While this solution has provided a flow meter with less measurement error, the resulting larger flow meter size is not suitable for many process applications

Method used

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  • Vibratory flow meter with multichannel flow tube
  • Vibratory flow meter with multichannel flow tube
  • Vibratory flow meter with multichannel flow tube

Examples

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Embodiment Construction

[0043] The present disclosure describes vibratory meters including multi-channel flow tubes and methods of measuring fluids using vibratory flow meters including multi-channel flow tubes.

[0044] figure 1 A vibrating meter 5 is depicted with a multi-channel flow tube 130 according to an example. Such as figure 1 As shown, vibrating meter 5 includes meter assembly 10 and meter electronics 20 . The meter assembly 10 is responsive to the mass flow rate and density of the process material. Meter electronics 20 is connected to meter assembly 10 via leads 100 to provide density, mass flow rate and temperature information, among other information, via communication path 26 . Information and commands may further be received at meter electronics 20 via communication path 26 .

[0045] A Coriolis flowmeter configuration is described, although this is not intended to be limiting. Those skilled in the art will readily appreciate that the present application may be practiced as a v...

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PUM

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Abstract

Vibratory meters (5), and methods for their use measuring a fluid are provided. Each vibratory meter includes a multichannel flow tube (300) comprising two or more fluid channels (302), a pickoff (170), a driver (180), and meter electronics (20) configured to apply a drive signal to the driver at a drive frequency, and measure a deflection of the multichannel flow tube with the pickoff. In examples, at least one fluid channel has an effective diameter that is related to kinematic viscosity, inverse Stokes number, and drive frequency; velocity of sound and drive velocity; or the length of the flow tube. In further examples, the driver may apply a drive signal to the driver having a drive frequency proportional to the kinematic viscosity, inverse Stokes number, and effective diameter; or velocity of sound and effective diameter.

Description

technical field [0001] Examples described below relate to vibrating meters and methods for using the vibrating meters. More particularly, examples relate to vibrating meters that include multi-channel flow tubes. Background technique [0002] Vibrating meters, such as Coriolis mass flow meters and vibrating density meters, typically operate by detecting the motion of a vibrating flow tube containing a flowing material. Properties associated with the material in the flow tubes, such as mass flow, density, etc., may be determined by processing measurement signals received from motion transducers associated with the flow tubes. A vibrating meter is a meter assembly with one or more flow tubes in a straight or curved configuration. Each flow tube configuration in a Coriolis mass flow meter, for example, has a set of natural modes of vibration, which may be of the simple bending, torsional, or coupled type. Each flow tube can be driven to oscillate in a preferred mode. When t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/84
CPCG01F1/8409G01F1/845G01F1/8468G01F1/8477G01F1/8486G01F1/8495G01F1/8422G01F1/8427G01F1/8431
Inventor M.J.贝尔J.魏因施泰因M.N.德赛C.R.格里芬
Owner MICRO MOTION INC
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