Wind Vane And Cup Anemometer

Coda Sensor offers a wide range of wind sensors. 3-Cup wind sensors and wind vane sensors are popular with customers all over the world. Coda Sensor has a skilled workshop. They use high-quality production technology.

Our company makes cup-shaped anemometer sensors and wind vane sensors. These products meet the national quality testing standards. They have a good structure, stable performance, high safety, and great reliability.

Working Principles

3-Cup wind sensors accurately measuring wind speed. They have three cups that are spaced out evenly. These cups are often shaped like half-spheres or parabolas. They are set on a rotating axis.

When the wind blows, the concave side of each cup faces more wind resistance than the convex side. This difference creates a torque that makes the cups rotate.

The rotation speed depends on the wind speed. When the wind speed is higher, the rotation is faster. Inside the sensor, a photoelectric or Hall-effect part changes the mechanical rotation into electrical signals, like pulse signals. You can find the proportional to the wind speed by counting these pulses over a set time.

Meteorological monitoring

Use an anemometer to measure wind speed in weather observations. Pair it with a wind vane for full wind data. A common cup anemometer measures wind speed by looking at how fast the cups spin.

Architecture and engineering

Anemometer plays an important role in the calculation of wind loads in construction projects. When engineers design large structures like tall buildings and bridges, they need to know the highest wind tunnel speed in the area. This information helps them figure out the wind load on the building.

Photovoltaic wind energy

We use anemometers to check the wind energy potential in an area. Before planning a wind farm, it is important to measure wind speed at the site for a long time.

Agriculture

Anemometer sensors help control the environment in greenhouses. They also check the conditions needed for crops to grow.

In a greenhouse, sensors can check the wind speed at the vents. They help fix the ventilation system. This ensures the air wind flow rate in the greenhouse is just right.

other wind

Hot wire anemometers are dependable and precise tools for measuring wind. They are often used in weather forecasting, in aerospace, and in factory ventilation systems.

Their main working principle is based on the hot wire sensor. This sensor is a thin wire. It gets hot when electricity flows through it. It is usually made of tungsten or platinum.

When air moves over the hot wire, heat goes from the wire to the air. This change affects the wire’s resistance. By watching these changes in resistance, the device can measure wind speed in real-time. It uses the link between heat loss and airflow speed.

Diverse Applications and Core Advantages

A key factor for these devices is their wind speed range. This range changes based on design and application needs. Compact models for testing indoor air quality can measure speeds from 0.1 to 30 m/s. Industrial-grade units can measure high-speed airflow.

They are used to test jet engines. These units can measure speeds of 100 m/s or more. This flexibility allows them to adjust to conditions from light breezes to strong industrial winds.

Hot wire anemometers are known for their great accuracy. Many high-end models have an error margin of less than plus or minus 0.5%. This is true even in low-speed conditions. Other measurement devices, like cup anemometers, may struggle to be sensitive in these cases.

To keep this precision and consistent operation, a stable power supply is very important. Most devices run on DC power. This can come from internal rechargeable batteries for portability or external AC adapters for fixed setups. Power changes can impact how stable the hot wire’s temperature is.

This directly affects how reliable the measurements are. Hot wire anemometers are used to calibrate HVAC systems. They also help with atmospheric research.

They provide a wide range of speeds, high accuracy, and dependable power operation. This makes them great for different accurate wind measurement needs.