Small Wave Buoy: Professional-Grade Wave Buoys for Lighter and More Precise Ocean Observation

Nov 17, 2025

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With the increasing demand for ocean monitoring, marine research institutions, offshore wind power companies, and port and waterway departments have placed new requirements on wave monitoring equipment: it must be accurate and reliable, lightweight, easy to deploy, and adaptable to complex sea conditions. Based on this trend, Small Wave Buoys have gradually become a core product of industry focus.

Leveraging years of experience in the R&D of drifting buoys and wave spectrum monitoring equipment, our company has launched a new generation of Small Wave Buoys that integrate high-precision sensors, low-power processors, and proprietary ocean dynamics algorithms. This enables professional-grade wave spectrum monitoring capabilities within a lightweight structure, making it one of the highest-performing small wave buoys on the market today.

Small Wave Buoy Product Positioning and Design Concept

 

Small Wave Buoys belong to the category of drifting buoys and are small, lightweight wave monitoring devices with the following characteristics:

Miniaturized structure, extremely convenient deployment

Can be deployed by a single person, suitable for small vessels or temporary observation tasks.

Adaptable to Complex Sea Conditions and Long-Term Aquamarine Deployment

The buoy is constructed from corrosion-resistant, UV-resistant, and seawater-impact-resistant materials, supporting long-term deployment.

Provides Professional-Grade Wave Parameters
Measures all elements including wave height, period, direction, spectrum, directional spectrum, and energy spectrum.

Widely Used in Scientific Research, Wind Power, Port, and Marine Monitoring Missions

 

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Core Technical Architecture: Professional-Grade Performance in a Compact Size

 

1. Nine-Axis MEMS-IMU Inertial Navigation Technology

The Small Wave Buoy incorporates a nine-axis IMU. By fusing acceleration, angular velocity, and attitude information, it can recover three-dimensional displacement of the sea surface, achieving high-precision wave spectrum calculation.

Advantages include:

More Stable Attitude Calculation

More Accurate Vertical Displacement Recovery

Precise Wave Morphology Capture

This allows the buoy to achieve scientific research-grade accuracy despite its small size.

 

2. STM32 Low-Power, High-Performance Processing Platform

Our Small Wave Buoy utilizes the STM32 microprocessor, offering the following advantages:

Low-power design (current < 50mA) suitable for long-term drift

Strong real-time processing capabilities, supporting rapid spectrum calculation

Support for extended communication modules (4G, BeiDou, satellite)

This ensures the buoy can operate for extended periods while outputting complete wave spectrum data.

 

3. Autonomous Ocean Dynamics Algorithm: Solving Cumulative Errors and Low-Frequency Drift

Traditional small wave meters suffer from the following drawbacks:

Acceleration integration leads to displacement drift

Instability in the low-frequency swell segment

Large wave direction calculation errors

Our algorithm achieves the following breakthroughs:

Completely eliminates cumulative errors from acceleration and velocity integration

Maintains high stability in the low-frequency segment (0.04Hz)

Intelligent separation of wind waves and swells

More accurate direction spectrum reconstruction, with a direction error of ±5°

These technological advantages enable the Small Wave Buoy's results to rival those of large, professional wave buoys.

 

4. Highly Integrated, Lightweight Structural Design

The float utilizes lightweight engineering composite materials, featuring:

Lightweight, deployable by a single person

Corrosion and wear resistant

Adaptable to nearshore, deep-sea, and complex environments

High impact resistance, adaptable to harsh sea conditions

Simultaneously, the miniaturized structure reduces transportation and maintenance costs.

 

Small Wave Buoy Monitors All Wave Elements

Our products can output:

1. Significant Wave Height Hs

Provides an important indicator of average wave energy.

2. Maximum Wave Height Hmax

Suitable for port and wind power safety assessments.

3. Wave Period (Average, 1/3, 1/10, Maximum)

4. Wave Direction (0–360°)

5. Spectrum (0.04–1.0 Hz)

6. Directional Spectrum

7. Three-Dimensional Energy Spectrum F(f,θ,E)

These data can broadly meet the operational needs of scientific research, engineering design, and marine forecasting.

 

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Application Scenarios of Small Wave Buoys:

1. Marine Scientific Research and University Experiments

Small buoys are suitable for large-scale deployment, collecting extensive wave spectrum data for research.

2. Pre-Emergency Sea State Assessment for Offshore Wind Power

Monitors wave energy, direction changes, and wave crest characteristics.

3. Port and Waterway Management

Provides real-time sea state input for ship scheduling and port structure design.

4. Coastal Erosion and Disaster Early Warning

Monitors swell propagation and extreme sea states in real time.

5. Coastal Engineering Construction

Uses wave spectrum input parameter collection for breakwater and seawall design.

 

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Why Choose Our Small Wave Buoy?

1. Industry-Leading High-Precision Algorithm

Precision and stability surpass those of similarly sized small drifting buoys.

2. Low Cost and Easy Deployment

Suitable for large-scale deployment projects.

3. High Scalability

Can be equipped with GPS, satellite communication, meteorological sensors, and CTD sensors.

4. Industrial-grade structure, long-life design

Long-term reliable operation.

5. Technical team provides data analysis support

Can provide wave spectrum analysis, directional spectrum reconstruction, and long-term sequence preprocessing.

 

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