Category
Ultrasonic Doppler Flow Meter for River & Open Channel Flow Monitoring | Water Level & Velocity Sensor System
High-precision ultrasonic Doppler flow meter for rivers, channels, reservoirs, and pipelines. Measures flow velocity, water level, and temperature for hydrological monitoring and flood management systems.
Product Introduction
The KH.DPL Ultrasonic Doppler Flow Meter is a high-precision hydrological instrument designed for continuous measurement of flow velocity, water level, and discharge in rivers, open channels, reservoirs, and pipeline systems.
It combines ultrasonic Doppler velocity measurement with ultrasonic or pressure-based water level detection to calculate real-time flow rates with high accuracy.
This system is widely used in hydrological monitoring stations, flood early warning systems, river flow analysis networks, and smart water resource management platforms, providing stable multi-parameter data for environmental and hydrological applications.
How It Works
The system uses two measurement principles:
- Doppler effect to measure flow velocity
- Ultrasonic or pressure sensing to measure water level
Flow rate is calculated using cross-sectional geometry and real-time sensor data.
This ensures:
- Continuous multi-parameter monitoring
- Stable operation in natural water conditions
- Accurate flow computation for hydrological analysis
Key Features
1. Ultrasonic Doppler Flow Measurement
Uses Doppler frequency shift to accurately measure flow velocity in rivers and open channels.
2. Multi-Parameter Monitoring Capability
Simultaneously measures:
Flow velocity
Water level
Temperature
Instantaneous and cumulative flow
3. High Accuracy & Stability
Velocity accuracy down to 1 mm/s and water level precision up to 1 mm (within 2 m range).
4. Maintenance-Free Operation
No moving parts or consumables required, ensuring long-term stable deployment.
5. IP68 Industrial Protection Design
Waterproof and corrosion-resistant structure suitable for long-term outdoor hydrological environments.
6. Compact & Easy Deployment
Lightweight design allows fast installation in rivers, channels, and hydrological monitoring stations.
Application Scenarios
River & Channel Flow Monitoring
Real-time flow velocity and water level measurement for hydrological observation and flood warning systems.
Reservoir Flow & Level Analysis
Supports water resource management and discharge monitoring for natural water systems.
Hydrological Monitoring Stations
Provides multi-parameter data for environmental research and watershed monitoring.
Pipeline Flow Monitoring Systems
Enables continuous flow measurement for water transmission and distribution systems.
Smart Water IoT Systems
Integrated with SCADA, telemetry networks, and IoT platforms for remote monitoring and data analysis.
Technical Specifications
| Parameter | Specification |
|---|---|
| Flow Rate Range | 0~10 m/s, bidirectional |
| Flow Rate Resolution | 0.001 m/s |
| Flow Rate Accuracy | ≤5 m/s: 0.001 m/s; >5 m/s: 0.02 m/s or 0.3% of actual peak velocity (larger value) |
| Ultrasonic Level Measuring Range | 6.5 m |
| Ultrasonic Liquid Level Accuracy | 0.001 m |
| Ultrasonic Level Resolution | 0.0005 m |
| Static Pressure Level Range | 0~10 m |
| Static Pressure Level Accuracy | ±0.1% FS |
| Static Pressure Level Resolution | 0.001 m |
| Temperature Range | -20~60℃ |
| Sensor Size | 165 × 50 × 29.5 mm |
| Transmitter Size | 231 × 185 × 119 mm |
| Protection Grade | IP68 |
| Power Supply | DC 12V / 24V |
| Power Consumption | <70 mA during measurement; <25 mA in sleep mode |
| Communication Interface | RS485, Modbus |
| Working Temperature | -20~60℃ |
| Lightning / Surge / EMI Protection | Supported |
