Is there any ready affordable anemometer in the market or the only solution is a DIY one ?
Quote from: manos437 on Sep 13, 2013, 11:35 pmIs there any ready affordable anemometer in the market or the only solution is a DIY one ?What does your personal research tell you? A quick look with Google shows commercial speed and direction sensors (anemometer and windvane) start at about $60. You can get an anemometer alone for $30 and a windvane alone for $30.What do you consider "not too expensive"?
If you want add a few other sensors you can get this unit for about $80:http://www.ebay.com/itm/1-set-of-Spare-part-outdoor-unit-for-Professional-Wireless-Weather-Station-/121159289733?pt=US_Weather_Meters&hash=item1c35a80b851). Wind speed sensor (1 unit)2). Wind direction sensor (1 unit)3). Rain gauge sensor (1 unit)4). thermo-hygro sensor (1 unit)5). Installation rack (1 unit)They have the wind speed alone for $23:http://www.ebay.com/itm/Spare-part-for-weather-station-to-test-the-wind-speed-/121128404439?pt=US_Weather_Meters&hash=item1c33d0c5d7Wind Direction, $28.95:http://www.ebay.com/itm/WEATHER-STATION-REPLACEMENT-PARTS-WIND-DIRECTION-SENSOR-WS1080-WS1090-WS2080-/251177780390?pt=US_Weather_Meters&hash=item3a7b5cc4a6This set-up for $39.99 includes speed and direction sensors:http://www.ebay.com/itm/Springfield-Digital-Wireless-Weather-Station-with-Wind-Speed-NIB-04165-/190898441707?pt=US_Weather_Meters&hash=item2c726f0deb
Be careful buying el cheapo anemometers off the net .Many will not come with any calibration data which means that you wont know what the relationship between spin rate and the wind speed actually is.
You can see that: http://www.lcjcapteurs.com/?lang=enFor an ultrasonic anemometer, is "not too expensive"!