Ultrasonic flow meters' introduction

The external clamp type or pipe section type ultrasonic flow meter is an instrument that measures the liquid flow in the pipe based on the principle of "velocity difference method". It adopts advanced multi pulse technology, digital signal processing technology and error correction technology, so that the flow meter can adapt to the environment of industrial site more easily, economically and accurately. The products have reached the advanced level at home and abroad, and can be widely used in petroleum, chemical industry, metallurgy, electric power, water supply and drainage and other fields.

Ultrasonic fuel flow meter definition

Ultrasonic flowmeter is an instrument for measuring flow by detecting the effect of fluid flow on ultrasonic beam (or ultrasonic pulse).

Ultrasonic fuel flow meter signal detection principle

According to the principle of signal detection, ultrasonic flowmeter can be divided into propagation velocity difference method (direct time difference method, time difference method, phase difference method and frequency difference method), beam migration method, Doppler method, cross-correlation method, spatial filtering method and noise method.

As the same as the electromagnetic flowmeter, the ultrasonic flowmeter is an unimpeded flowmeter because the instrument flow channel is not equipped with any blocking parts. It is a type of flowmeter that is suitable for solving the problem of difficult flow measurement, especially in large diameter flow measurement. It is one of the rapidly developing types of flowmeters.

Ultrasonic fuel flow meter application

Survey

Ultrasonic flowmeter is generally used for projects that need to know pipeline flow data. There are two options. Doppler is applicable to open channel, multi impurity, multi bubble liquid measurement, and TDOA is applicable to relatively pure full pipeline liquid measurement with a small amount of impurities.

The specific project still depends on the demand, such as general water plants, sewage plants, thermal power plants, steel plants and other large quantities of water will be used, and solar power plants, cleaning machines, and food processing plants will also use ultrasonic flowmeters with fast rising small pipe diameters.

So in the final analysis, as long as liquid flow is used, and there are pipes that need to know flow data, flow meters are required.

Environment

Doppler method is applicable to two-phase fluid with low heterogeneous content, such as untreated sewage, factory effluent and dirty process fluid; Usually not suitable for very clean liquids.