Post by thread:Solid State Anemometer [OT]

> More information wanted. > James Cameron .....quozlKILLspam@spam@us.netrek.org http://quozl.us.netrek.org/ James, They are talking about what's called a "sonic" anemometer, where you directly measure the airflow by putting an ultrasonic pulse out, and measuring the difference between the "upstream" speed and the "downstream" speed. In practice, they use three or four transducers and do the trig on 6 or 8 rociprical paths to derive speed and direction. Its neat because its solid state, but more complex (and expensive) than the simple mechanical transducers. Handar, I think, makes a nice one. I can't find my copy of the spec sheet right now ($^@!#%). Don't know if they are on the web, a search should turn it up. Look for Ultrasonic anemometers. ------------ Barry King, Engineering Manager NRG Systems "Measuring the Wind's Energy" http://www.nrgsystems.com Phone: 802-482-2255 FAX: 802-482-2272