Wednesday, 13 July 2016

Anemometers-A versatile tool for weather forecasting professionals


An anemometer is a very smart instrument to determine the speed of wind (and also its pressure) with great level of accuracy. Whether you are an aerodynamics student or a weather forecast technician, if your life is affected by wind speed, you got to have one hot wire anemometer like Hot Wire Anemometer to gain insights about how to plan your tasks better.

 
Looking at the schematic diagram of an anemometer, we will notice that a popular anemometer is composed of 3 (or 4) solid cups that are soldered to the rigid metal arms, attached horizontally to the skeleton. With the wind blowing, the main skeleton spins due to the coupling effect produced within the instrument.  The more the speed of the wind flow, greater is the angular velocity (or simply the spin) of the skeleton rod. In practice, an anemometer is devised to calculate the number of spins per unit time. As you’d have often realized, the wind speed keeps fluctuating and so to ensure an accuracy and precision in measurement, the wind speed is always measured for only a short time.
An industry-trending anemometer like HTC AVM-08 Hot wire Anemometer can detect wind speeds for with the following specifications
Air Velocity Measurement Range
Range
0.10 - 25.0 M/S
Resolution
0.01 M/S
Accuracy
(5% +0.1M/S)
Make sure you buy from a genuine dealer to avoid getting inferior or way too costly product. This instrument can be used both for your commercial as well as your personal usage.Some of the other common anemometers are:
     Sonic Anemometers:        To measure the directional speed of the ultrasonic waves (in 1, 2 and 3 dimensions).  
Consisting of powerful transducers, sonic anemometers is sensitive to even slight velocity fluctuations, thus making this device a hotpick for scientific and meteorological` studies.
● Plate Anemometers: Having surface (instead of hollow cups) circular or square, the main body is balanced on a spring.


Since they cannot detect smaller wind pressures or the speed for that matter, but they can be quite useful in recording the average wind pressures.

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