Anemometer measurement3/31/2023 ![]() ![]() NCERT Exemplar Class 10 Science Solutions Chapter 14.NCERT Solutions for Class 10 Science Chapter 14 Sources of Energy.It is mainly used in the school to teach the kids. The ball is very lightweight so it can easily be moved by the wind. Ping-pong ball anemometer:- It is a very basic construction that is made from the ping-pong ball attached to the string.Savvas Kapartis in 1999 developed the technique of acoustic resonance anemometer. Acoustic resonance anemometer:- It is the modified variant of the sonic anemometer.There are two types of ultrasonic anemometer: two dimensional and three-dimensional ultrasonic anemometer. ![]() It is expensive but being weather compatible means there is a negligible effect of weather on it. It has no moving parts and no need for calibration. By sending the sound waves between the transducer we can calculate the speed of the wind. Ultrasonic anemometer:- It uses ultrasonic sound waves to measure the wind velocity.In Jet engines or river hydrology, this type of anemometer is used. They produce a Doppler shift when the particles are in great motion for measuring the speed of the wind. Here it is measured relative to the original laser beam. ![]() One of the beams propagates out of the anemometer and flows along with air molecules where the beam exits to reflect the light back into a detector. In this, a laser beam is used which is split into two beams.
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