ANEMOMETER

Published:2009/7/15 0:18:00 Author:Jessie | From:SeekIC

Here is a really simple and inexpensive anemometer. You can use any small dc motor for MOT1. Meter M1 can be any milliampere or microampere meter with markings from 0 to 50 or100. The parts, including the 1000-Ω, 15-tum potentiometer, are available at hobbyist sources. A three-paddle wheel for the motor can be made with golf-ball-sized hollow plastic balls. Cut two of them in half, and bolt three of the halves to a PVC hub, using 6-32 machine screws. Calibrate the circuit by holding it out of a car window while someone drives steadily between 20 and 30 miles per hour on a still day.



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