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Determining a decay characteristic of a meter assembly

A technology of attenuation characteristics, meter, applied in the field of meter verification, which can solve problems such as change

Pending Publication Date: 2021-03-16
MICRO MOTION INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the attenuation characteristics can vary due to properties or changes in properties other than the meter components; such as the density or viscosity of the material being measured or the temperature of the meter components

Method used

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  • Determining a decay characteristic of a meter assembly
  • Determining a decay characteristic of a meter assembly
  • Determining a decay characteristic of a meter assembly

Examples

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Embodiment Construction

[0040] figure 1 - 8 and the following description depict specific examples to teach those skilled in the art how to make and use the best mode for determining the attenuation characteristics of a meter assembly. For the purpose of teaching inventive principles, some conventional aspects have been simplified or omitted. Those skilled in the art will appreciate variations from these examples that fall within the scope of the invention. Those skilled in the art will appreciate that the features described below can be combined in various ways to form multiple variations of the invention. Accordingly, determining the attenuation characteristics of a meter assembly is not limited to the specific examples described below, but only by the claims and their equivalents.

[0041] figure 1 Flow meter 5 including meter assembly 10 and meter electronics 20 is shown. The meter assembly 10 is responsive to the mass flow rate and density of the process material. Meter electronics 20 is ...

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Abstract

A meter electronics (20) for determining a decay characteristic of a meter assembly (10) of a flow meter (5) is provided. The meter electronics (20) includes an interface (201) for receiving a vibrational response from a meter assembly (10), the vibrational response comprising a response to an excitation of the meter assembly (10) at a substantially resonant frequency, and a processing system (203) in communication with the interface (201). The processing system (203) is configured to receive the vibrational response from the interface (201), determine a response voltage (V) of the vibrationalresponse, determine a decay characteristic (Zeta) of the meter assembly (10) based on the response voltage (V), and compensate the decay characteristic (Zeta) by using a previously determined decay characteristic-to-response voltage relationship.

Description

technical field [0001] The present invention relates generally to meter verification and, more particularly, to determining attenuation characteristics of meter components. Background technique [0002] Vibrating conduit sensors, such as Coriolis mass flow meters or vibrating tube densitometers, typically operate by detecting the motion of a vibrating conduit containing a flowing material. Properties associated with the material in the conduit, such as mass flow, density, etc., may be determined by processing measurement signals received from motion transducers associated with the conduit. The modes of vibration of a vibrating material filled system are generally affected by the combined mass, stiffness and damping properties of the containing conduit and the material contained therein. [0003] The conduit of a vibratory flow meter may include one or more flow tubes. The flow tube is forced to vibrate at a resonant frequency, where the resonant frequency of the tube is pr...

Claims

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Application Information

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IPC IPC(8): G01F1/84
CPCG01F1/8436G01F1/8413G01F1/8459G01F1/8468G01F25/10G01H11/00G01M99/005
Inventor C·B·麦卡纳利B·J·道宁
Owner MICRO MOTION INC