According to the principle of signal detection, ultrasonic flow meter 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 filter method and noise method,etc.
Application
FLUS ultrasonic flowmeter has been widely used in industrial production, commercial measurement and hydraulic test, etc., such as: In the measurement of raw water, tap water, water, sewage in the municipal industry, ultrasonic flowmeter has the characteristics of large span ratio, non pressure loss, which ensures measurement accuracy at as well as improve the efficiency of the pipe network; In the flow measurement of water pipes, flow channel, pump stations, power stations in the water conservancy and hydropower industry, ultrasonic flowmeter has the characteristics of large diameter, on-site installation and on-line calibration, which makes accurate measurement possible. At the same time we achieve equipment optimization, economic operation through the metering of pump, turbine single pump, single machine; In the measurement of industrial cooling circulating water, the ultrasonic flowmeter has realized the on-line installation and on-line calibration with continuous flow and pressure.