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Wind Sensor
Products
Wind sensors, also known as anemometers, are devices used to measure wind speed and direction. They play a crucial role in various industries, including meteorology, renewable energy, industrial automation, and environmental monitoring. By providing accurate and real-time wind data, these sensors help optimize performance, enhance safety, and improve decision-making in wind-related applications.
Ultrasonic Anemometer
The ultrasonic anemometer measures wind speed and direction based on the time-of-flight principle of ultrasonic waves:
The sensor contains two or three pairs of transducers placed at fixed distances.
Ultrasonic signals are sent alternately between the transducers.
When wind passes through, it affects the travel time of the sound waves. The difference in travel time between upstream and downstream directions is used to calculate the wind speed and direction.
Key Features
No Moving Parts: The lack of mechanical components makes it more durable and maintenance-free.
High Precision: Provides fast, accurate, and consistent wind data, even in turbulent or gusty conditions.
All-Weather Performance: Resistant to rain, snow, and dust, making it suitable for harsh environments.
Multiple Outputs: Supports digital communication protocols (e.g., RS485, Modbus) for seamless integration into data systems.
Cup & Vane Wind Sensor
The cup & vane wind sensor operates on a mechanical principle:
Wind Speed Measurement: The sensor uses a three-cup rotor mounted on a vertical axis. As the wind blows, it rotates the cups. The rotational speed is directly proportional to the wind speed. A magnetic or optical encoder translates the rotation into an electrical signal, providing a wind speed output.
Wind Direction Measurement: The wind vane consists of a tail fin that aligns itself with the wind direction. A potentiometer or encoder detects the vane’s angular position, converting it into a directional signal.
Key Features
Mechanical Design: Involves moving parts, making it more susceptible to wear and tear over time.
Cost-Effective: Cup & vane sensors are generally more affordable, making them ideal for standard weather monitoring applications.
Moderate Accuracy: Provides reliable wind data, but its accuracy can be affected by inertia, friction, and response time in rapidly changing winds.
