Thread: 2012 FRC Team 1717 Uncut
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Unread 26-06-2012, 18:36
jakemochas jakemochas is offline
Programmer
FRC #1717 (The D'Penguineers)
Team Role: Student
  
Join Date: Jan 2012
Rookie Year: 2012
Location: United States
Posts: 22
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Re: 2012 FRC Team 1717 Uncut
Quote:
Originally Posted by Jared341 View Post
He may just mean a light sensor (like a Banner sensor, or a 2011 KOP line sensor) being used as a digital tachometer with a piece of reflective tape or a photogate. Nothing to "encode" (in a quadrature sense), since your wheel generally isn't changing the direction that it rotates.
Quote:
Originally Posted by JamesTerm View Post
Thanks Jared, that is what I was thinking as well... I'd love to see how well this compares against an encoder (either kind)... as of now, I am still frustrated with encoders with these high of speeds.
Quote:
Originally Posted by JamesTerm View Post
When you say light sensor do you mean optical encoder?
It is a reflective photointerrupter with emitter and detector facing in the same direction. We have 16 black marks that are evenly spaced on the side of the flywheel to provide data for the detector.