Building a Wind Gauge
Jul 19, · This video shows you how to build a simple anemometer (wind speed meter) using paper cups, straws, and a pushpin. This fun activity makes a great science fai. Dec 05, · Here’s a wireless wind gauge system that consists of a wireless anemometer paired with an LCD display unit that you can keep indoors up to feet away from the sensor. This AcuRite wireless anemometer measures the wind speed, humidity and temperature outdoors and transmits this information at 18 second intervals to the LCD base station which you can mount on your wall indoors .
Here is a simple wind gauge for use in breezes. It will indicate direction and relative how to get out of a 6 month tenancy agreement. Use the wind gauge to find out where the wind blows strongest. Compare gauge readings. Do obstacles affect wind speeds and direction?
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What is a wireless anemometer? What are wireless wind speed meters used for?
These windsocks or koinobori, when flown, signified a life event, such as the birth of a child. Nowadays they have become a tradition to fly on the Japanese holiday Children's Day. Over time, many cultures adapted windsocks for their functionality in determining wind direction. Windsocks are easy to make .
The idea of a home-made wind speed meter must surely cross the mind of avid kite-fliers from time to time! Here are my own ideas and musings, after a quick look at one retail wind meter in particular. Have you noticed that quality meters and weather data loggers are quite expensive? There's not much out there under USD. Also called the anemometer try saying that quickly!
Some of these sports could be rather demanding on such a device, since it could be bumped or splashed with water. Or worse! However, good old single-line kiting would have to be one of the safest environments for a wind speed meter.
In comparison to many other sports and hobbies that is. Flying a kite is generally quite a genteel activity. Wouldn't you agree? Before diving into some ideas for home-made devices, I have to admit that I don't actually use one that was made at home!
You see, a jolly red-coated gentleman with white beard supplied me with a you-beaut Aussie expression Windtronic 2 anemometer on the 25th of December not that long ago. However, before this I certainly was considering making one for myself. Of course, to calibrate any one of these devices, it would be necessary to hold it out the window of a moving car, at various speeds.
Over here in Adelaide, South Australia, an appropriate approach might be to mark the scale in 5 kph intervals. In fact, to do a really good job of it, it would be an idea to drive down a road in one direction using, say, a blue pencil. Then drive the other way, making all the marks in red.
Permanent marks could then be made mid-way between the colored ones, thus averaging out errors caused by wind. One of the ideas below is quite impractical and obviously nuts - see if you can identify it ;-. A floating flap would be one of the simplest ideas for a wind speed meter. A hollow box is constructed, open at 2 ends so the wind can blow right through.
In the middle, inside the box, hangs a flap connected to an axle. On the outside of the box, the axle is connected to a pointer which rotates around a scale drawn on the outside of the box. The stronger the wind, the higher the flap sits before the weight-driven torque force balances out the wind's force on the flap. To make the device more sensitive, a counterweight could be employed too, acting to partially balance out the weight of the flap.
Less air pressure would then be required to get a reading. This would be more important if you fly light-wind kites. Again, regarding sensitivity, some kind of funnel could be added to the intake of the device. This way, it's always working with higher air flow past the flap, making it respond more readily to changes in wind speed.
Yet another way to achieve sensitivity would be to use a very light material for the flap. Say polystyrene or a light grade of balsa wood. You could even get fancy and construct a frame from split bamboo and then stretch thin plastic over it! Anything to 'add lightness'. In theory, a venturi could be constructed from a couple of funnels connected together by a very short pipe between the narrow ends of the funnels.
A length of plastic tubing could then be joined to a hole in the short pipe. Air-tight of course! The tubing would then be attached to a board which would need to be vertical like a wall.
With a long 'U' shape held into the tubing, it could be partially filled with a colored liquid. With no air flowing through the venturi, the fluid level would sit at the same height on both sides of the 'U'. However, as air starts to flow through the venturi, the air pressure in the short pipe would drop markedly. This in turn would suck the colored fluid through the tube causing the 2 fluid levels to differ.
Hence you've got something to calibrate! In fact, despite this apparatus being very impractical to carry around and transport, it would actually deliver a very accurate wind speed reading!
I'm sure of it, since the principle is still used in aircraft. A little hand-held windsock could also be constructed with a long spar down the middle to hold it out straight. The spar could be pointed at one end so it indicates angle on a scale, much like the floating flap idea.
The windsock and scale would need to rotate on a bearing to remain in line with the wind direction. Otherwise, it would under-read. Now for a real flight of fancy! OK, the idea is that you draw a series of colored pie-sections on a solid flat wheel. Ever seen a pie-chart illustrating financial or other data? Something like that, except there would be many, narrow slices of pie. Also, the wheel would be hitched up to, or part of, a windmill in order to spin the colors around. Now for the tricky bit.
Trial and error would be required, and lots of it! At 5 kph, the blue pieces of pie would merge into a solid image, since they are rather close together! At 10kph, the red pieces would merge, changing the color of the disk once again. Some purple kind of color probably. At 15 kph, the green pie sections would merge, resulting in a combined color that would make anyone looking at it puke! Get the idea? Getting the angular width and spacing right for all those colored pie sections would be a nightmare, but it should work Lastly, of course, the whole wind speed meter would need to be mounted on a swivel-mount like a real wind-mill so it always faces into the breeze.
The uhhm MBKPCWSM pronounced 'mah-book-pok-wizzum' could actually be made in quite small sizes if the engineering and manufacturing technology was clever enough. Remember, you saw this wind speed meter idea here first! As mentioned earlier, there's more kite-making on this site than you can poke a stick at It's a printable PDF file. Make a well-tested diamond , delta or sled step-by-step. Do me a small favor? If you're over 16, please sign up for Tethered Flying - my free twice-per-month publication Any questions?
Make a diamond , delta or sled step-by-step. They fly hundreds of feet up for hours on end. Could you do me just a small favor though? If you're over 16, please sign up for Tethered Flying - my free twice-per-month publication. Here's just a sampling of the total content Here's more info on the e-book and the newsletter.
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