The first part of this page will give you the basic facts on Anemometers, how to use them, where to buy them and information on where to look if you are practical minded and want to learn how to make your own, later on ln the page I will go more into different types and the history of anemometers,
I structure my pages this way because most times we just want to get what we need and go (time is precious), So here we go the two main types off Anemometers associated with home use are the cup and the windmill, But we will focus on the cup variety as it is the cheapest,
For research purposes it is always best to try and locate your wind measuring device as close to the actual position you will eventually build a Wind Turbine, if you are blessed with a lot of space around your home try different locations to find the best one.
If you want to cut your learning time and buy an Anemometer there are still ways to save money, for instance go to your local hardware store or steel merchant for the pole to mount it on, try places like Amazon or EBay,
Now for some facts, we need to test the wind speed before we erect our Wind Turbine to make sure it is viable and going to save us money on our bills, The Anemometer you choose must be able to record and log the data over a period of time so as to calculate the average mean speed.
having said that if you live in an area that is unobstructed and seems to receive a constant strong breeze you could contact the meteorological dept for your area and they should be able to give you an average recording in m/s,below is a video of a home made Anemometer.
Additional Information On Anemometers
The anemometer was first developed during the 15th century and has been improved since then. The term “anemometer” comes from the Greek word “anemos” which in English means “wind”.
Speed of sound in moving air is different from that through still air.Let Vs be the velocity of sound in still air and V is the wind velocity.If both the sound and wind are moving in the same direction, then the resultant speed of sound waves (V1) is: V1=Vs + V … Sonic anemometers also do not have any moving parts.They are reliable and accurate for measuring wind velocity in the range of 0 to 65 m/s.
sonic or hot Wire versions are also costlier so it would be beneficial to opt for the cup Anemometer and they are plenty accurate enough for your home needs. depending on your area you may want to try a hand held version which will give you a good idea of wind speeds at different places around your home before erecting something more permanent.
Learn About Anenometers|Build A Wind Turbine
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