Doppleráramlásmérket
Doppleráramlásmérket, often referred to as a Doppler flowmeter, is a device used to measure the velocity of a fluid or a moving object. It operates based on the Doppler effect, which is the change in frequency of a wave in relation to an observer who is moving relative to the wave source.
In the context of flow measurement, the Doppler flowmeter emits a beam of ultrasonic sound waves into
The magnitude of the Doppler shift is directly proportional to the velocity of the fluid. A greater