Water Level Sensor for River

Water Level Sensor for River —— River Water Level Radar Monitoring Solution

River water level continuous and precise monitoring is a key basic data source in flood control and disaster reduction, water resource management, hydrological research, and smart water conservancy systems. Compared with traditional contact liquid level gauges, Water level sensor for river based on millimeter wave radar technology is gradually becoming the mainstream choice for water level monitoring in rivers, reservoirs, and open channels.

The NiuBoL radar water level gauge is specially designed for complex outdoor environments. It can stably output high-precision water level data under conditions such as strong wind, rainfall, sediment, and water surface fluctuations, meeting the needs of long-term unattended monitoring.

Water level sensor for river Product Overview

The radar water level gauge (Water level sensor) is a FMCW (Frequency Modulated Continuous Wave) millimeter wave radar water level measurement device operating in the 77GHz~79GHz frequency band. It calculates the transmission time difference by transmitting high-frequency electromagnetic waves and receiving the reflected signal from the water surface, thereby achieving non-contact water level measurement.

The NiuBoL radar water level gauge has a maximum measurement range of up to 65 m, with a blind zone less than 15 cm. It is particularly suitable for long-distance monitoring of open water bodies such as rivers, channels, and reservoirs. The device adopts a nut fixing method and can be quickly installed in conjunction with hydrological and rainfall monitoring poles or monitoring boxes, facilitating engineering deployment.

Radar Water Level Gauge Working Principle and Technical Advantages Analysis

FMCW Millimeter Wave Radar Measurement Principle

The radar water level gauge uses FMCW technology to calculate distance through the frequency difference between the linearly frequency-modulated transmitted signal and the echo signal. Compared with pulse radar, this technology has higher ranging resolution and anti-noise capability, making it particularly suitable for complex water surface environments.

77–79GHz High-Frequency Advantages

• Higher bandwidth, resulting in higher measurement resolution

• More sensitive to water surface reflection, with stable ranging accuracy

• Smaller antenna size, more compact overall structure

Water level sensor for river Core Features

• Based on self-developed CMOS millimeter wave RF chip, with highly integrated RF architecture and higher signal-to-noise ratio

• Large working bandwidth, water level measurement resolution up to 1 mm

• Narrowest 8° beam angle, effectively reducing interference from riverbanks, bridge piers, etc.

• Integrated lens design, small and compact size, more convenient for installation and maintenance

• Non-contact measurement, unaffected by water quality, sediment, or floating objects

• Low power consumption design, suitable for solar power supply systems

• Industrial-grade structural design, suitable for long-term outdoor operation

Radar Water Level Gauge Main Technical Specifications

Application Value of Water level sensor in River Monitoring

• Flood Control and Water Level Early Warning
  Real-time acquisition of river water level change trends, providing reliable data foundation for flood control dispatching and emergency response.

• Hydrological Stations and Basin Monitoring
  As an important component of automatic hydrological stations, continuously collecting water level data over the long term for hydrological model analysis.

• Smart Water Conservancy and IoT Systems
  Access to RTU, DTU or data collectors via RS485 interface to achieve remote transmission and cloud management.

• River Regulation and Ecological Monitoring
  Assisting in evaluating the impact of river water level changes on the ecological environment and supporting scientific governance decisions.

Comparison Analysis Between Radar Water Level Gauge and Traditional Water Level Sensors

Water level sensor Installation and Usage Key Points

Installation Precautions

• Before installation, check whether the sensor appearance and accessories are complete

• The sensor must be installed vertically to the water surface

• Avoid interference objects such as riverbanks, bridge piers, railings, etc. within the beam range

• Ensure the installation structure is stable to prevent long-term vibration

• Reasonably select the installation height to avoid exceeding the measurement range

FAQ:

1. Is the radar water level gauge suitable for turbulent rivers?
   Yes. Radar measurement does not contact the water body and is not affected by water flow velocity.

2. Will heavy rain or fog affect the measurement?
   Millimeter waves have strong penetration ability against rain and fog, and the measurement remains stable under normal rainfall conditions.

3. Will floating objects on the river surface cause false measurements?
   The narrow beam design can effectively reduce interference from floating objects, with minimal overall impact.

4. Is it compatible with existing hydrological systems?
   Yes. It supports RS485 interface and can be connected to most hydrological RTUs and data platforms.

5. Does the radar water level gauge require regular calibration?
   Under normal circumstances, frequent calibration is not required, and long-term stability is high.

6. Does it support solar power supply?
   Yes. The low power consumption design is very suitable for solar power supply solutions.

Summary

Water level sensor for river is an indispensable key device in modern river water level monitoring. With advantages such as high precision, non-contact, strong anti-interference, and low maintenance cost, the NiuBoL radar water level gauge demonstrates significant value in flood control, hydrological monitoring, smart water conservancy, and IoT systems.

For river water level monitoring projects that require long-term, stable, and unattended operation, millimeter wave radar water level gauges are becoming a more reliable and efficient solution.