Designing a Wind Velocimeter

For my junior-level instrumentation class, my team and I were assigned to create a device to calculate wind speed and direction.  Using parts from around the lab, we created this:

Air Speed Measurement Device

This device used a hobby propeller attached to a DC motor, mounted as a windmill on a potentiometer.  The wind would cause the propeller to spin, creating a measurable voltage difference across the motor terminals.  The resistance across the potentiometer indicated the direction.

ImageThe device was calibrated and tested in a wind tunnel.


Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

%d bloggers like this: