Model recommendation: TH-LS6+The manufacturer of meteorological and environmental monitoring instruments and equipment, Yunjing Tianhe supports customized services for merchants. You can rest assured when choosing Shandong Yunjing Tianhe equipment. The advantage of Doppler current meter is timely monitoring and analysis of flow velocity data, which can quickly discover environmental hidden dangersAcoustic Doppler current profiler (ADCP) is a high-precision underwater acoustic flow measurement device based on the acoustic Doppler effect, which can measure the flow velocity profile at different depths in water in real time. It is widely used in fields such as marine investigation, river flow monitoring, water conservancy engineering, environmental monitoring, and industrial production. The working principle is similar to sonar, and its core is the acoustic Doppler effect. When there is relative motion between the sound source (ADCP transducer) and the receiver (such as suspended particles, plankton, etc. in water), the frequency of the reflected sound wave will change, and this frequency change is called Doppler shift. ADCP emits sound pulses at specific frequencies, receives echo signals reflected by scatterers in water, analyzes the difference between the transmission frequency and the reception frequency (Doppler shift), and calculates the vector velocity of water flow by combining the transducer direction and beam geometry relationship. By measuring echoes with different time delays (corresponding to different depths) in layers, ADCP can obtain three-dimensional flow field data of vertical profiles. No physical sampling is required, avoiding disturbance to the flow field, and there is no mechanical inertia or wear, resulting in low maintenance costs and high operational reliability.

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.