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Intelligent flow velocity simulation system

A flow rate simulation system and flow rate technology, applied in liquid/fluid solid measurement, measurement devices, instruments, etc., can solve the problems of inaccurate calibration and detection of converters, insufficient anti-noise interference ability, etc., and achieve low output impedance and improved reliability. performance, improving accuracy

Pending Publication Date: 2021-08-13
NINGBO WATER METER
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Problems solved by technology

[0005] The embodiment of the present application provides an intelligent flow rate simulation system to at least solve the problems of inaccurate calibration and detection of converters in the related art and insufficient ability to resist noise interference

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Embodiment Construction

[0035] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be described and illustrated below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application. Based on the embodiments provided in the present application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application. In addition, it can also be understood that although such development efforts may be complex and lengthy, for those of ordinary skill in the art relevant to the content disclosed in this application, the technology disclosed in this application Some design, manufacturing or production changes based on the content are just conventional technical means, and...

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Abstract

The invention relates to an intelligent flow velocity simulation system. The system comprises a flow velocity induction voltage output unit, a flow velocity direction switching unit, and a noise signal simulation unit. The flow velocity induction voltage output unit is connected with an electromagnetic water meter converter, converts the exciting current generated by the electromagnetic water meter converter into induction voltage corresponding to the flow velocity and outputs the induction voltage; the input end of the flow velocity direction switching unit is connected with the output end of the flow velocity induction voltage output unit, the output end of the flow velocity direction switching unit is connected with the input end of the electromagnetic water meter converter, and the flow direction of an induction voltage signal is controlled through the flow velocity direction switching unit; the noise signal simulation unit comprises a noise signal generator, the GND of the noise signal generator is connected with the analog ground port of the electromagnetic water meter converter, the output end of the noise generator is connected with the GND of the intelligent flow velocity simulation system, and the noise signal generator simulates common-mode noise signals and inputs the common-mode noise signals to the analog ground end of the electromagnetic water meter converter. And the reliability of the converter is improved.

Description

technical field [0001] The application relates to the field of electromagnetic water meters, in particular to an intelligent flow velocity simulation system. Background technique [0002] At present, the electromagnetic flowmeters in the domestic and foreign markets are uneven in performance, especially for electromagnetic water meters that need to meet low power consumption, high precision, and wide range. The working principle of electromagnetic water meter and electromagnetic flowmeter technology are based on Faraday's law of electromagnetic induction. When a uniform conductive liquid passes through a uniform and constant magnetic field, an induced electromotive force will be generated on the electrode in contact with the liquid at the boundary of the flow field. Through the measured The induced electromotive force calculates the average flow rate of the conductive liquid. Electromagnetic water meters or electromagnetic flowmeters are structurally composed of two parts: ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F25/00
CPCG01F25/00
Inventor 孟挹清陈伟
Owner NINGBO WATER METER
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