Home Made Anemometer

Anemometer is made from 3 cut 2" PVC caps (cups), 1 cut 1" PVC reducer (hub), 1 cut 1 1/4" cap (bearing cover), small threaded rod/nuts, 5/16" threaded rod (mount), ABEC 9 roller blade bearing, 5/16" jam, lock and castle nuts, cut sheet aluminum (pickup mount) , one small round magnet and a Sigma bicycle computer.

The weather vane is sitting on a Maxtor Hard drive motor and bearing. The vane consists of 1 3/4" PVC cap, 1 3/4" PVC plug, small threaded rod and nuts, drilled trimmed and cut fishing weight and a small piece of sheet aluminum.

I have yet to put a potentiometer on the vane. In the end I plan to finish it as a complete weather station, with temperature sensor and barometric pressure sensor. Maybe a humidity sensor. I have not decided yet. This is all in preparation of building a home brew wind generator from Volvo strut parts.

The anemometer starts up in as little as 1 MPH breezes and has been very accurate. The weather vane is suffering from too little tail and too much weight on the nose. I have already made another one. Just have not installed yet.

Category:

Science & Technology

Tags:

• anemometer
• wind
• generator
• PVC
• bicycle
• computer

[d3cole]

We have a school project to do and was wondering how exactly u made it??

[snookwhaler]

@d3cole Right below the "video window" there is a tab labeled "show more". Click on that and some of the details are in there. If you need more info. let me know. It is very heavy duty. It took a bit of trial and error to get it properly balanced. It has only been down one time so I could paint it (last year). Other than that, it has worked flawlessly and I use it daily. We get lots of wind in our area.

[mousepotato64]

Nice job. Love seeing this kind of stuff. Are you going to put up a wind gen after the weather station is done?

[snookwhaler]

Thanks! I'm working on the wind gen. now. Just a basic unit with an Ametek 50(long body). Ultimately I want to build an axial flux type. I just do not have the time right now. I'll put up a better video of the anemometer soon. This one is too dark.

[snookwhaler]

I think it was 1320 on the BC 1200. I will have to look again. I have since used a BC 800 as well. Both have been calibrated against an analog hand held and a davis instruments anemometer. Very accurate and much more durable than the Davis.

[anemometers]

nice caps

[d3cole]

could u have given any more detail psshhh?!? :(

[o00rayan00o]

تمام عليك

مشكور

[radioman1075]

I want to say that you did the best job building that then any I have ever seen. I'm a Meteorologist of 24 years and you could nearly start your own manufacturing if you wanted to. PVC is very tough and durable. I never knew they made caps that were rounded to fabricate something like that. I do know certain common sizes for the wheel that if built the particular diameter what RPM = MPH for calibration. For wind direction you can also use an AC synchro repeater, pot or reed switches.

[rippinreffers]

very smart.

[EurosportRacingIMSA]

Awesome video... is the potentiometer installed yet? I think i may build my own thanks for the idea!!

[albaccilu]

how to calibrate that bike computer?