How to Measure Wind Speed with Handheld Anemometers?

Published: 12th August 2010
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The Anemometer is a device that is used for reading the wind speed. Weather stations are found using this device for detecting and measuring wind speed. Wind velocity and pressure can be measured easily with the help of Anemometers. This device is also available in a hand holding size also known as handheld Anemometer. This is very small in size compared to the units used by weather stations and have a minimum weight structure. Because of low weight structure, the ease of handling and measuring on remote places are greatly increased. Not only are they in a comfortable size but also very reliable devices, which helps a person to know a very exact wind readings.

Any device that measures wind speed is bound to sense the pressure of it too. For this reason, many anemometer designs are successful when used as pressure meters too in addition. A version of anemometer is known to have existed since around 1450. The modern wind anemometer though, has been around for more than a century and a half now; the first successful design was one that used a structure with four arms fanned out, each one with a cup attached that caught the wind and spun the structure. The inventor, Dr. John Robinson, held the impression when he made his invention that any cup anemometer would share the characteristic that it would spin at a third of the speed of the wind blowing past it, no matter what size it was built to be. Researchers took his word at its face for quite a while before it was discovered that the size of design used always affected the results. Researchers who had used the inventor's figures for their calculations for years had to start over from scratch.

A handheld Anemometer is really unique and impressive even in the structure of design. As the common large Anemometer, the handheld version also gives a perfect wind reading. A handheld Anemometer uses the sound waves along with the wind to detect the wind readings and measure. Thermal energy and laser beams are two basic tools that help the device in finding the wind readings. Earlier the Italian Anemometer helped in finding the wind speed but now with the latest technology different other aspects of wind can also be determined. These devices can now also aids in detecting the wind temperature, measure, speed, humidity and pressure around you. Hence, the modern Anemometer wind readings are quite definite and reliable for seeking accurate values.

Another wind anemometer design that is particularly ingenious is the constant-temperature anemometer. A thin wire held between two electrodes is heated up electrically to hold a constant temperature. A sensor measures the amount of current needed to hold the temperature at ambient temperature levels. Any loss of temperature that is faster than would be explained by the ambient temperature levels would have to come from wind speed. This is a particularly accurate method of measurement of wind turbulence. However, like the laser measurement method below, this can be a quite inexpensive device to buy and maintain.

As a handheld Anemometer can be hold in hands without any tension, it can be used as for personal or private intentions. Anyone that benefit from measuring windspeed can come by one for a reasonable price.

When an Anemometer starts measuring wind, it doesn't care about the sudden blowing winds and dust. In fact, it is a very sofisticated instrument that measures wind within 5% instead of km/h or m/s. The Handheld version of Anemometers also comes water-proof with anti-fragile quality that can float in water. Hence, a handheld Anemometer can be said as a unique and quite useful device.

For more information and online shopping visit Weather Station Instruments, Advanced Weather Station and Projection Clock

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