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Liquid flow measuring method, device and system

A technology of liquid flow and measuring device, which is applied in the field of electronics and can solve the problems of large error of liquid flow value and fluctuation of liquid surface.

Inactive Publication Date: 2016-06-15
GUANGDONG WEICHUANG TECH DEV
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] The purpose of the present invention is to provide a liquid flow measurement method, device and system to improve the problem that the liquid flow value measured by the existing ultrasonic flowmeter has a large error due to large fluctuations on the liquid surface when the liquid to be measured is in a flowing state

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  • Liquid flow measuring method, device and system
  • Liquid flow measuring method, device and system

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Embodiment Construction

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] Such as figure 1 As shown, a liquid flow measurement system 100 provided in the first embodiment of the present invention, the liquid flow measurement system 100 includes a liquid flow measurement device, a weir flume 103 and a stilling well 104, and the still water well 104 is connected to the weir flume 103 communicated; the liquid flow measurement device includes a controller 101 and a detection part 102, the detection part 102 is electrically connecte...

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Abstract

The embodiment of the invention provides a liquid flow measuring method, device and system, and belongs to the technical field of electronics. The method comprises the steps of continuously obtaining three reference liquid level depths, obtaining a liquid level depth contrast threshold on the basis of the three reference liquid level depths, obtaining a liquid level depth to be converted on the basis of the three reference liquid level depths and the liquid level depth contrast threshold, and then obtaining a liquid measuring mode corresponding to the liquid level depth to be converted on the basis of the conversion relation between the preset liquid level depth and liquid flow. The problem that due to large liquid surface fluctuations, the error of a liquid measuring value measured by an existing ultrasonic flowmeter is large is solved.

Description

technical field [0001] The present invention relates to the field of electronic technology, in particular to a liquid flow measurement method, device and system. Background technique [0002] At present, in order to meet the national requirements for the total amount control of major pollutants in the discharge source, non-contact measurement methods are widely used in the measurement of industrial sewage discharge. Because ultrasonic has the characteristics of high frequency, short wavelength, small diffraction phenomenon, good directionality, small attenuation in liquid and solid, high penetration rate, and significant reflection when encountering impurities or interfaces. Ultrasonic based flow meters are widely used. In the process of measuring liquid flow by the existing ultrasonic flowmeter, when the liquid to be measured is in a flowing state, the surface of the liquid fluctuates greatly, resulting in a relatively large error in the flow value of the liquid measured b...

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Application Information

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IPC IPC(8): G01F1/66
CPCG01F1/66
Inventor 陈青陈天瑜王贵东李泽彪李锡峰朱润泉谢小晶
Owner GUANGDONG WEICHUANG TECH DEV
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