With the launch of the plan to build a sponge city, Fuzhou Dayu's river flow meter sensor, also called ultrasonic Doppler flow meter sensor, has sprung up in the rivers of various sponge cities like bamboo shoots after a rain.

        So what is a sponge city? Sponge city is a new generation of urban stormwater management concept, which means that the city has good " resilience in adapting to environmental changes and coping with natural disasters caused by rain . In recent years, the crops caused by floods have been inundated, houses collapsed, and travel is inconvenient. Factors such as more and more frequent, it is necessary to monitor the flow rate and water level of the river from time to time in order to achieve the effect of early warning. After several years of research and development, Fuzhou Dayu has newly launched an ultrasonic Doppler flow meter sensor that meets the needs of the market .

        Ultrasonic Doppler flow meter is a device for measuring the flow rate of water in pipes, channels or rivers, and is mainly used in the following areas:

        · Flood disaster monitoring

        · Sewage discharge

        · Natural rivers

        · Municipal water supply and drainage

        · Water loss / infiltration monitoring

        · Irrigation process monitoring

        · Research on estuaries and tides

        · Fishery / Water Conservancy

        · Coastal erosion research

        · Underdrain process monitoring

        · Road drainage monitoring

        ·The canal process research

        · River flow monitoring