Model recommendation:TH-LS6+Manufacturer of meteorological and environmental monitoring instruments and equipment, Yunjing Tianhe supports customized services for merchants. You can rest assured that the Doppler flowmeter is used for irrigation area information construction to achieve real-time monitoring of flow rate, water level, and flow velocityPortable Doppler flowmeter is a high-precision flow velocity measurement device designed based on the principle of Doppler effect, widely used in fields such as water conservancy, environmental protection, agriculture, industry, and urban construction. The device emits fixed frequency ultrasonic waves into the water flow, and suspended particles (such as sediment and bubbles) in the water flow act as reflectors to reflect the ultrasonic waves back to the receiving end. Water resources monitoring provides data support for water resource assessment and flood forecasting by monitoring the flow velocity and flow rate of rivers, lakes, reservoirs, and other water bodies. Water conservancy engineering planning, design, and operation optimization, such as monitoring river flow conditions to adjust scheduling plans. Environmental supervision of sewage pipe network flow monitoring, timely detection of abnormal discharge, and prevention of water pollution incidents. Monitoring the ecological flow of rivers to ensure the health of aquatic ecosystems.

1、 Product Introduction

Acoustic Doppler flowmeter is an instrument used for measuring flow velocity and flow rate in rivers, open channels, and pipelines. It adopts ultrasonic detection technology, with high measurement accuracy, good stability, little influence from environmental factors, no rotating parts, low maintenance frequency, and high work reliability. It is a portable flow rate measurement product.

Principle: In the field of acoustics, when there is relative motion between the sound source and the receiver (i.e. probe and reflector), the frequency of the echo will change, and this frequency change is called frequency shift, or Doppler effect. The frequency of sound waves increases when moving towards the observer and decreases when moving away from the observer. Doppler flowmeter calculates flow velocity by calculating frequency changes.

2、 Application Fields

Sponge cities, river chief management, inland river monitoring, natural rivers, open channels, pipelines, aquaculture and other scenarios.

3、 Main features

1. It can measure the flow rate, velocity, and water level of pipelines, channels, and natural rivers.

2. A single flow velocity sensor is easy to install and suitable for flow measurement in municipal sewage pipes, non full pipe pipelines, various channels, irregular rivers, natural streams, sewage outlets, etc. It can also be concealed for long-term stable operation.

3. Can provide instantaneous flow values and cumulative flow values.

4. 2.8-inch color screen with text and graphics for easy operation and flow analysis.☆

5. It can store 10000 pieces of data and export data through the included USB flash drive.☆

6. Low power consumption of the sensor: When measuring flow rate, the power consumption is less than 0.8W.☆

7. Chinese and English operation interface, supporting one click switching.☆

8. Built in rechargeable lithium battery, with a working time of over 8 hours.

9. Built in pressure type water level sensor and temperature sensor.

4、 Technical indicators

5、 Performance indicators

VIUsage requirements

1. The air duct cable contains an air duct and cannot be excessively bent to prevent it from breaking; Never use the air guide cable as the rope of the flowmeter, and drag the Doppler flowmeter with the air guide cable;

2. The circular ultrasonic transducer in front of the probe should not be subjected to impact or scratches;

3. The instrument probe should avoid prolonged exposure to sunlight to prevent malfunctions caused by high temperatures;

4. When using an acoustic Doppler flowmeter in areas with high sediment concentration, it is necessary to regularly clean the sludge on the ultrasonic transducer and pressure sensor to prevent the sludge from blocking the pressure sensor.