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Unread 06-02-2006, 23:08
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Mike Betts Mike Betts is offline
Electrical Engineer
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Team Role: Engineer
 
Join Date: Dec 2001
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Location: Homosassa, FL
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Re: Small motor used as sensor

Quote:
Originally Posted by JoelP
In order to measure the RPM of the wheel used as the shooter, would it be legal to connect a small dc motor, not in the KOP, to the shaft of the wheel so that when the wheel is turned by a KOP motor, the small motor generates a current which is connected to the RC analog inputs.

I'm pretty sure using a small motor as a sensor is legal by the rules regarding to custom circuitry, but it doesn't hurt to double check.
Joel,

It is best to check with FIRST Q&A regarding legality. I am guessing that they would not allow this device as it is a motor and would generate a signal more powerful than other sensors available.

Why not use an encoder or other sensor designed for this type of measurement?

Mike
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Mike Betts

Alumnus, Team 3518, Panthrobots, 2011
Alumnus, Team 177, Bobcat Robotics, 1995 - 2010
LRI, Connecticut Regional, 2007-2010
LRI, WPI Regional, 2009 - 2010
RI, South Florida Regional, 2012 - 2013

As easy as 355/113...