The clamp-on or tube-segment ultrasonic flow meter is a meter that measures the flow of liquid in a round tube based on the principle of the "speed difference method". It uses advanced multi-pulse technology, signal digital processing technology and error correction technology to make the flow meter more adaptable to the environment of the industrial site, and the measurement is more convenient, economical and accurate. 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 flowmeter is a meter that measures the flow rate by detecting the effect of fluid flow on the ultrasonic beam (or ultrasonic pulse).
According to the principle of signal detection, ultrasonic flowmeters can be divided into propagation velocity difference method (direct time difference method, time difference method, phase difference method and frequency difference method), beam shift method, Doppler method, cross correlation method, and spatial filtering method. And noise law, etc.
Ultrasonic flowmeters are the same as electromagnetic flowmeters. Because there are no obstructions in the flow channel of the instrument, they are non-obstructive flowmeters. They are a type of flowmeter suitable for solving difficult flow measurement problems, especially in large-diameter flow measurement. It is one of the rapidly developing types of flow meters.
Ultrasonic flowmeter is a non-contact instrument, it can not only measure the flow of large pipe diameter medium, but also can be used to measure the medium that is not easy to contact and observe. Its measurement accuracy is very high, and it is almost free from the interference of various parameters of the measured medium. It can especially solve the flow measurement problems of strong corrosive, non-conductive, radioactive and flammable and explosive media that other instruments cannot.