Doppler open channel flowmeter

Description :

　　Working principle of Doppler open channel flowmeter

　　The Doppler open channel flowmeter product includes the following sensors: flow velocity sensor, pressure sensor, and temperature sensor. Flow rate sensors are used to measure the velocity of fluid flow, pressure sensors are used to measure water depth, and temperature sensors are used

　　The device is used to measure fluid temperature and compensate for sound velocity. By measuring the flow velocity, water level, and cross-sectional size, the cross-sectional flow rate can be determined. In the ultrasonic Doppler flow measurement method, the ultrasonic transmitter is a fixed sound source that travels with the fluid

　　The moving solid particles act as "observers" with relative motion to the sound source. Of course, they only reflect the ultrasonic waves incident on the solid particles back to the receiver. The frequency difference between the emitted and received sound waves is the Doppler frequency shift caused by the movement of solid particles in the fluid. Since this frequency difference is proportional to the fluid flow velocity, measuring the frequency difference can obtain the flow velocity and thus the fluid flow rate. Therefore, it is suitable for measuring dirty water and slurry with high impurity content, such as urban sewage, sludge, etc.

　　Main technical indicators of Doppler open channel flowmeter

　　Current Speed:

　　Measurement range: 0.02-5m/s

　　Accuracy: 1.0% ± 1cm/s

　　Resolution: 1mm/s

　　Water depth:

　　Measurement range: 0m-10m

　　Accuracy: ± 1cm

　　Resolution: 1mm

　　Temperature:

　　Measurement range: -10 ℃ -60 ℃

　　Accuracy: ± 0.5 ℃,

　　Resolution: 0.1 ℃

　　traffic

　　Measurement range: 0.001m3/h-999999999 m3/h (can be increased according to the section)

　　Accuracy: ± 3% (varies depending on the cross-sectional flow state)

　　Resolution: 0.0001 m3/s

　　Power supply: DC 10V-24V

　　Working current: 12V less than 0.1A

　　Output signal: RS485 (Modbus RTU)

　　Storage capacity: 2M (expandable)

　　Protection level: IP68

　　Working temperature: 0 ℃ -60 ℃ (non freezing)

　　Storage temperature: -10 ℃ -70 ℃

　　Equipment Material: Engineering Plastic

　　Doppler open channel flowmeter manufacturer

AfterSalesService :

• Doppler open channel flowmeter