Classification of wind speed sensors

A wind speed sensor is a device used to measure the speed of wind in the atmosphere. It typically determines wind speed by detecting the force generated by the wind on the sensor or by measuring the effect of wind flow on the sensor.

Wind speed sensors can be categorized into various types according to their working principles and measurement methods, including rotary wind speed sensors, ultrasonic wind speed sensors, hot-wire wind speed sensors and laser Doppler wind speed sensors.

1. Rotary wind speed sensors: Rotary wind speed sensors calculate the wind speed by measuring the force exerted by the wind on the rotating parts on the sensor (e.g. windmill) or the angle of rotation. This sensor is commonly used in meteorological observation, aviation, navigation and weather forecasting and other fields.

2. Ultrasonic wind speed sensors: Ultrasonic wind speed sensors utilize the propagation time of ultrasonic pulses to measure wind speed. They usually consist of a transmitter and a receiver, and the wind speed is calculated by measuring the time difference of the pulse propagation in the wind. Ultrasonic wind speed sensors are commonly used in meteorological observation, environmental monitoring and wind energy utilization.

3. Hot-wire wind speed sensors: Hot-wire wind speed sensors utilize a filament or membrane heated by a controlled electric current, and then measure the cooling effect of wind speed on the filament or membrane to calculate wind speed. These sensors are commonly used in meteorological observations, air quality monitoring, and industrial fluid dynamics.

4. Laser Doppler wind speed sensors: Laser Doppler wind speed sensors utilize the scattering effect of a laser beam to measure wind speed. They calculate wind speed by measuring the change in frequency of laser scattering. Laser Doppler wind sensors are commonly used in fields such as aviation, meteorology and environmental research.

Wind speed sensors are widely used in meteorological observation, aerospace, wind energy utilization, environmental monitoring and other fields. Its ability to measure wind speed quickly, accurately and in real time provides important data support for related industries and fields.