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Method of calculating flow through electromagnetic flowmeter

A technology for calculating flow and flow calculation, which is applied in the field of calculating flow and can solve problems such as inability to obtain flow results accurately.

Active Publication Date: 2019-10-01
上海凡宜科技电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition to the aforementioned factors that will affect the flow result of the fluid, the power frequency interference signals 106 will also affect the flow result of the fluid
[0009] To sum up, many factors will affect the measurement signals of the fluid, so the flow result of the fluid cannot be obtained accurately

Method used

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  • Method of calculating flow through electromagnetic flowmeter
  • Method of calculating flow through electromagnetic flowmeter
  • Method of calculating flow through electromagnetic flowmeter

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Embodiment Construction

[0082] Throughout this disclosure, numerous specific details are provided in order to provide a thorough understanding of specific embodiments of the invention; however, those skilled in the art will recognize that without one or more of these specific details, the In other instances, well-known details are not shown or described in order to avoid obscuring essential technical features of the invention. Hereby, the technical content and detailed description of the present invention are described as follows in conjunction with the drawings:

[0083] Please refer to Figure 9 , which is a waveform diagram of an illustrative embodiment of these measurement signals of the electromagnetic flowmeter of the present invention; please also refer to Figure 10 , which is a block diagram of an embodiment of the electromagnetic flowmeter applied in the present invention; please also refer to Figure 11 , which is a flowchart of an embodiment of the method for calculating flow rate using...

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Abstract

The invention relates to a method of calculating flow through an electromagnetic flowmeter. The method comprises the steps that a calculation unit designates a first-direction pulse signal as a reference signal; the calculation unit defines at least one second-direction pulse signal before the reference signal as a first signal group; the calculation unit defines at least one second-direction pulse signal after the reference signal as a second signal group; the calculation unit obtains a first difference value by use of the reference signal and a first characteristic value of the first signalgroup; the calculation unit obtains a second difference value by use of the reference signal and a second characteristic value of the second signal group; the calculation unit performs calculation onthe first difference value and the second difference value to obtain a result weighting value; and the calculation unit obtains a flow result of a fluid by use of the result weighting value.

Description

technical field [0001] The invention relates to a flow calculation method, in particular to a flow calculation method using an electromagnetic flowmeter. Background technique [0002] An electromagnetic flowmeter of the related art is installed in a pipeline to measure a flow result of a fluid flowing through the pipeline; the electromagnetic flowmeter of the related art includes at least two electrodes and two coils; After the coil is charged, a magnetic field is formed in the pipeline, so that when the fluid passes through the magnetic field in the pipeline, the fluid generates a plurality of induced electromotive forces between the two electrodes; the electromagnetic flow rate of the related art The meter measures the induced electromotive forces to obtain a plurality of measurement signals; the stronger the induced electromotive forces (that is, the measurement signals), the greater the flow result of the fluid; therefore, the electromagnetic flowmeter of the related art...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/58
CPCG01F1/58
Inventor 陈俊儒黄坤成陈胜守郑兆凱
Owner 上海凡宜科技电子有限公司