Before discussing the benefits of ultrasonic anemometer & ultrasonic wind sensor, let’s see what an anemometer is first. An anemometer can be an instrument that measures the air velocity. You can find diverse forms of it and among which that the wind cup anemometer may be the most commonly used in meteorological stations.

It is mainly made up of three parabolic cone empty cups fixed on the bracket at 120� each other. The concave surface of the empty cup is all facing one direction. The whole sensing part is installed on a vertical rotating shaft. Under the effect of wind, the wind cup rotates around the shaft at a speed proportional to the wind speed.

The anemometer is mainly using the meter adopts the calorimetric principle to measure the wind speed. ultrasonic anemometer The essential principle is to put a thin metal wire in the fluid and pass the current to heat the metal wire to make the temperature greater than the temperature of the fluid, therefore the metal The silk anemometer is called “hotline”.

Once the fluid flows through the metal wire in the vertical direction, it will take away a part of the heat of the metal wire, and the temperature of the metal wire will drop. According to the theory of forced convection heat exchange, it might be derived that there is a relationship between the heat Q lost by the heating wire and the velocity v of the fluid.

The wind speed sensor can be an intelligent instrument with convenient use, good performance and high reliability. It really is widely used to measure wind speed in greenhouses, environmental protection, weather stations and breeding places.

There are many types of wind speed sensors, that can be split into Pitot tube wind speed sensors, propeller wind speed sensors, Hall effect electromagnetic wind speed sensors, hot wire wind speed sensors, and ultrasonic wind speed sensors. Compared with the original wind speed meter, the ultrasonic wind speed sensor gets the advantages of good measurement accuracy and multiple functions, and the structure of its probe is not at all hard.

In lots of applications, it replaces the original wind speed and direction sensor. People will choose ultrasonic wind speed sensors in some field precision measurement tasks, such as for example urban environmental monitoring, wind power generation, weather monitoring, bridges and tunnels, marine ships, aviation airports, various fan manufacturing industries, and industries that require exhaust systems.