windgen.org vawt discussion

I have that reliability direct tach- it works fine in contact mode but the optical mode only works in low-light, as in, inside a bulding and artificial light.

Tried to get a reading on the weedeater head outside and it gave me nothing but garbage.   Same with the little lenz VAWT in bright sunlight.

Still working though the issues; it eats batteries fairly quickly.

Cain't get to the UK version of the bike comp link;  if it'll read crank revs it oughta work for us

Turtle

i've find it

for low cost on priceminister

it's a bicycle computer with RPM fonction



www.priceminister.com/offer/buy/71476868/Compteur-Multifonction-Pour-Velo-Odometre-Chronometre-Horloge.html


-- Edited by benoh on Monday 15th of February 2010 11:48:40 AM

Hobby VAWT wrote:

---

Where can I find a device to measure RPMs?

---

I purchased one of these that someone in the group suggested but I don't remember who?????????

http://www.reliabilitydirect.com/tachometerproducts/RDI-TC802.htm

It was about $60.00.  It uses a small reflective tape.  I haven't had a chance to use it yet however.

Jerry

 

hey, welcome to the forum
you can use a bicycle computor /speedomiter
the kind with a magnet ofn the wheel



-- Edited by electrondady1 on Sunday 17th of January 2010 05:16:34 AM

http://otherpower.com/anemom2.html Might this help?

I've been using this with an industrial prox sensor, but it may be a pricey way to go.

http://www.redlion.net/Products/DigitalandAnalog/Counters/CounterRate/CUB5.html

Where can I find a device to measure RPMs?