![]() Hotwire probes must be calibrated before use. In order to increase the strength, sometimes a metal film is used to replace the metal wire, and a thin metal film is usually sprayed on a thermally insulating substrate, which is called a thermal film probe. According to different uses, the hot wire probe is also made into double wire, three-wire, oblique wire, V shape, X shape, etc. The commonly used wire is 5 μm in diameter and 2 mm in length the smallest probe is only 1 μm in diameter and 0.2 mm in length. Metal wires are usually made of metals with high melting points and good ductilities such as platinum, rhodium, and tungsten. Standard hot wire probes consist of two brackets tensioned with a short, thin wire. According to the theory of forced convection heat exchange, it can be derived that there is a relationship between the heat Q dissipated by the heat line and the velocity v of the fluid. When the fluid flows through the wire in a vertical direction, it will take away part of the wire's heat, causing the temperature of the wire to drop. The working principle of the wind anemometer is to put a thin wire in the fluid, and the wire is heated by an electric current to make the temperature higher than the temperature of the fluid, so the wire anemometer is called a "hot wire". Its maximum wind speed range is 0~30m/s. The wind meter with a thermal stretchable probe is easy to carry and use. The thermal anemometer has a wind speed sensor and temperature sensor. Reliable handheld anemometer has a large display to show the value. Hot Wire Anemometerįactory price hot wire anemometer is an instrument for measuring wind speed and temperature. A wind speed meter with a wind speed measurement range of 0~30 m/s is used for weather stations, airports, agriculture, etc. Low cost handheld anemometer, also known as a weather station anemometer, is an instrument for measuring wind speed, It can measure not only wind speed but also wind direction, temperature, humidity and air pressure. The wind speed meter with wind speed measurement range of 0~40 m/s, 60m/s, and 70m/s is available on ATO.com. Ultrasonic AnemometerĬheap ultrasonic anemometer is a wind speed and direction measuring instrument that uses the difference in time or frequency between sending an acoustic pulse and measuring it at the receiving end to calculate wind speed and direction. The wind speed meter measures air velocity and outputs voltage and current signals by electromagnetic induction. Testing accuracy speed ± 3%, direction ± 3°. It has a wind measurement range of 0~70m/s, and 0~360° wind direction measurement. The three-cup anemometer is a commonly used measuring instrument in weather stations. 3 Cup AnemometerĪTO 3-cup anemometer is the most common type of anemometer. The digital anemometer is the best choice if you want to know the wind direction or wind speed information you may need during outdoor activities such as camping, hiking, sailing and hunting. The anemometer can read speeds of up to 45 m/s with an accuracy of about 2%. 5 Anemometer Types for Measuring Wind SpeedĪ digital vane anemometer is a portable wind speed measurement device. ![]() For some anemometer, it is not only a tester for wind speed and direction measurement but also a multifunctional wind sensor measuring CFM, temperature, humidity and other specifications. Anemometer has wide applications in the weather station, industry, agriculture, HAVC, exhaust system, etc.Īccording to anemometer working principle and appearance, common types of wind meters are digital, vane, cup, ultrasonic, hot wire, thermos, windmill, pressure tube, and laser Doppler. ![]() The wind speed measuring device is generally small, light and portable for use. Anemometer is also called a wind meter, air velocity meter or wind gauge, which is an instrument for measuring wind speed and (or) direction.
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