When a pipe wall/portable ultrasonic beam propagates in a liquid, the flow of the liquid will cause a slight change in propagation time, and the change in propagation time is proportional to the flow velocity of the liquid. When there is zero flow, the time required for two sensors to emit and receive sound waves is exactly the same (a technology that can actually measure zero flow). When liquid flows, the sound wave transmission time in the upstream direction is greater than that in the downstream direction.

The relationship conforms to the following expression:

Among them, θ is the angle between the sound beam and the direction of liquid flow, and M is the number of times the sound beam propagates in a straight line through the liquid

D is the inner diameter of the pipeline, and Tup is the propagation time of the sound beam in the positive direction

Tdown is the propagation time of the sound beam in the opposite direction Δ T=Tup – Tdown

2. By attaching the magnetic ultrasonic flowmeter sensor to the outer wall of the pipeline, flow measurement can be completed;

3. By selecting different types of sensors, it is possible to measure the flow rate of pipelines with diameters ranging from DN15 to DN6000;

4. Different versions of flow meters can support Chinese or English menus for convenience and speed;

5. Equipped with a large capacity nickel hydrogen rechargeable battery, it can support continuous operation of the flowmeter for more than 20 hours;

6. Real time screen printing can be achieved, and up to 20 pre-set measurement results can be printed on a scheduled basis;

7. Up to 20 measurement results set in advance can be uploaded to the computer or the Internet.