Radar water surface velocity sensor
Uses Doppler radar to measure surface velocity in m/s.
ATLAS SAYAÇ
Radar Flow Sensor
Monitor water surface velocity and level without contacting the water in irrigation canals, rivers and free-surface drains. The Atlas radar range can be configured from individual sensors to a solar-powered remote monitoring station.
Atlas radar product range
Radar water level sensor
Measures distance to the water surface. Level is derived from the installation datum.
Open-channel radar flow meter
Measures surface velocity and level. Discharge is calculated using the surveyed cross-section and site calibration.
Solar wireless data logger
Reads sensors via RS485/Modbus RTU, stores time-stamped readings and transfers data over 4G or LoRaWAN.
Solar open-channel monitoring station
Combines radar, data logger, mounting hardware and power equipment. AtlasServer integration is scoped for each project.
How is discharge calculated?
Water depth is used to determine the wetted cross-sectional area A(h). Surface velocity is converted to mean cross-sectional velocity using a site relationship established through reference measurements. Discharge is calculated as Q = A(h) × v̄.
Example. In a trapezoidal channel with a 0.80 m bottom width, 1.5:1 side slopes (horizontal:vertical) and 0.40 m water depth, the wetted area is 0.56 m². At a surface velocity of 0.60 m/s and an illustrative velocity coefficient of 0.85, discharge is approximately 286 L/s.
Applications
Irrigation canals
Discharge and volume monitoring at main canals and water delivery points.
Rivers and flood monitoring
Water level and surface velocity monitoring from a bridge or cantilever.
Drainage and wastewater
Monitoring in free-surface channels. Narrow clearances, foam and low velocities are assessed during the site survey.
Solar power and communications
Integrated or external solar panels and batteries are sized using winter solar availability and daily energy demand. Check operator coverage for 4G and gateway and network coverage for LoRaWAN. Local logging and data transfer after a communications outage are verified during project acceptance.
Discuss your project
Share the channel cross-section, mounting height, approximate minimum and maximum water level and discharge, site photographs and preferred connectivity. Technical specifications and site configuration are agreed during quotation.