Doppler Flowmeter for Discharge Channel Measurement at Shanxi Fenhe Second Reservoir Hydropower Station
Shanxi Fenhe Second Reservoir Hydropower Station has a discharge channel approximately 6 meters deep and 10 meters wide, used for routine release of stored reservoir water.

Figure 1 Downstream of the dam at Shanxi Fenhe Second Reservoir Hydropower Station
In response to the national requirement for hydropower stations to discharge ecological water volumes, Fenhe Second Reservoir Hydropower Station also needs to record the amount of water released downstream each day.
To ensure measurement accuracy, a "one-to-two" configuration is adopted: 1 ultrasonic Doppler flowmeter main unit + 2 ultrasonic Doppler current meter sensors. One Doppler current meter sensor is installed on each side of the channel (left and right banks), allowing accurate measurement of flow velocity on both sides. Given the relatively high flow velocity during flood season, DN80 steel pipes are used as mounting brackets to protect the sensors under high-flow conditions.

Figure 2 Mounting bracket for the current meter sensor
Doppler flowmeter for discharge channel measurement at Shanxi Fenhe Second Reservoir Hydropower Station

Figure 3 Culvert for discharging stored reservoir water
After installation, Mr. Zhang, the site reservoir manager, commented: "Using this ultrasonic Doppler flowmeter for measurement makes installation relatively simple. Even during the dry season when flow velocity is only a few centimeters per second, it can still measure accurately. It works very well."

In addition, here is our latest upgraded model: the ultrasonic Doppler flowmeter, with a minimum measurable water level of 2–5 cm, flow velocity range of 0.03 m/s to 5 m/s, and flow rate up to 10–14 L/s.
Fuzhou Dayu Electronics Technology Co., Ltd. — manufacturer of ultrasonic Doppler flowmeters, is committed to providing customers with high-quality products and excellent service solutions. If you are interested in or have questions about the ultrasonic Doppler flowmeter above, please click to contact our online customer service QQ: 2187169532, or call our service hotline: 0591-28082552. Fuzhou Dayu Electronics will serve you wholeheartedly!
