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Unread 07-04-2013, 13:27
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Um, I smell Motor!
AKA: Scott McBride
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Re: paper: Take-Back-Half Shooter Wheel Speed Control

Quote:
Originally Posted by Ether View Post
What speed sensor are you using, and how are you decoding the signal?

What motor, and gear ratio from motor to wheel?

What language are you using?

How fast are you running your TBH algorithm?


The speed sensor, is a Banner DS18VN6LP photoeye.

The 8" pneumatic wheel is direct mounted to a CIM with Hex shaft and hub.

There is a piece of reflector tape on every other face of the hex shaft, so 3 pulses per revolution.

The TBH algorithm runs is in a 10ms timed tasked loop, with metronome timer.

The code is labview, more info from this link. http://www.chiefdelphi.com/forums/sh...d.php?t=113954

We are not using gear tooth mode on the sensor, but now we are averaging over 3 pulses, because of the change to the hex shaft.
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