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Unread 16-06-2005, 09:21
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Jeff Waegelin Jeff Waegelin is offline
El Jefe de 148
AKA: Midwest Refugee
FRC #0148 (Robowranglers)
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Re: Which shaft encoder to use?

Quote:
Originally Posted by Al Skierkiewicz
Jeff,
Go to the Grayhill site to be sure, but many of these encoders are not continuous rotation. The flag for me was the spec that an operational cycle was a full rotation through all positions and a return to zero. Since one application is for frequency set on a radio this may be only a 250-270 degree rotation with 32 detents. When checking devices be sure to find the spec on the maximum allowable rotational speed as well.
I checked Grayhill, and it is a continuous-rotation encoder, but it's only rated for 16.6 RPM, and has detents on it. So, it looks like this one won't work, after all.
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Jeff Waegelin
Mechanical Engineer, Innovation First Labs
Lead Engineer, Team 148 - The Robowranglers