I am looking to make a photo gate circuit that allows an object to move a certain distance along a driving system, then stop by disengaging the driving force or turning it off.
Possibly Using a "ruler" system to judge the distance the object has traveled.
Example: Say I want an object to travel 3 feet then stop.
The idea would state that a photo-gate would measure the stance by a ruler through the gate and stop when it reaches that distance.
RULER (shown below)
0.........1'.........2'.........3'..........4'
█ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █
Any Ideas on how this could be done?
I found a similar circuit online at the address below, but it seems to only have an on off switch for light/no light. This seems the simplest way of doing it because it would require no programming, but it I would rather the object slow down and speed up based on distance then this circuit is no good for my application.
http://www.hiviz.com/tools/triggers/triggers3.htm
Any insight and discussion is welcomed. My circuit knowledge is minimal (I have had 2 classes at the university level)
Thanks.
Possibly Using a "ruler" system to judge the distance the object has traveled.
Example: Say I want an object to travel 3 feet then stop.
The idea would state that a photo-gate would measure the stance by a ruler through the gate and stop when it reaches that distance.
RULER (shown below)
0.........1'.........2'.........3'..........4'
█ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █
Any Ideas on how this could be done?
I found a similar circuit online at the address below, but it seems to only have an on off switch for light/no light. This seems the simplest way of doing it because it would require no programming, but it I would rather the object slow down and speed up based on distance then this circuit is no good for my application.
http://www.hiviz.com/tools/triggers/triggers3.htm
Any insight and discussion is welcomed. My circuit knowledge is minimal (I have had 2 classes at the university level)
Thanks.
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