Ok, so mount it in a hat.Except that it has to be hands-free and give an indication of relative direction across a 180 degree spread.
Rotating a mirror would be easier. The aperture for the sensor is pretty small so it could look up through the center of a bearing. Perhaps a 3/8" ID (or smaller) bearing, or gear, mounted on a hollow shaft, which is where the sense diode would be mounted. The mirror would be mounted at 45 deg above the sensor and rotate with the top housing. The bearing or gear are off the shelf items. Just have to build a clear top housing for the mirror.Could we use an oscillating IR receiver, say 180 deg., & avoid slip rings? Also how about a code disc with a limited no. of positions, say 16 or less ?
by Duane Benson
by Jake Hertz
by Duane Benson
by Jake Hertz