Ultrasonic flowmeter

Ultrasonic flowmeter introduction
Ultrasonic flow meters are meters that measure the flow by sensing the effect of fluid flow on an ultrasound beam (or ultrasound pulse).
According to the principle of signal detection, ultrasonic flowmeters can be classified into differential propagation velocity methods (direct time difference method, time difference method, phase difference method, and frequency difference method), beam offset method, Doppler method, cross correlation method, and spatial filter method. And noise law.
Ultrasonic flowmeters, like electromagnetic flowmeters, are flowmeters without obstructions, and are unobstructed flowmeters. They are a class of flowmeters that are suitable for solving difficult flow measurement problems, particularly in large-diameter flow measurements. In recent years it has been one of the fastest growing flow meters.

The advantages and disadvantages of ultrasonic flowmeter
advantage:
(1) Non-contact measurement can be made;
(2) No flow obstruction measurement, no pressure loss;
(3) The non-conductive liquid can be measured, which is a supplement to the electromagnetic flowmeter without obstructing the measurement.
Disadvantages:
(1) The transit time method can only be used to clean liquids and gases; the Doppler method can only be used to measure liquids containing a certain amount of suspended particles and bubbles;
(2) Doppler measurement accuracy is not high.

Application profile
(1) The propagation time method is applied to clean, single-phase liquids and gases. Typical applications include factory effluents,: strange liquids, liquefied natural gas, etc.;
(2) Good experience has been used in the field of high-pressure natural gas for gas applications;
(3) The Doppler method is suitable for two-phase fluids with relatively low out-of-phase contents, such as untreated sewage, factory discharge fluid, and dirty process fluid; it is usually not suitable for very clean fluids.

Features
â—† The unique digital signal processing technology makes the instrument measurement signal more stable, strong anti-interference ability, and more accurate measurement.
â—† No mechanical transmission parts are not easy to damage, maintenance-free, long life.
â—† The circuit is more optimized, with higher integration, lower power consumption and higher reliability.
â—† Intelligent standard signal output, human-machine interface is friendly, a variety of secondary signal output, for your choice.
â—† Pipe segment small-diameter flow measurement is economical and convenient, with high measurement accuracy.