Quote:
Originally Posted by DeepWater
Ok, after some more searching I think I have found a current sensor exactly like what I had envisioned but I still don’t know if it is legal per the wording highlighted above in <R44>.
Are these Phidgets line of current sensors legal per <R44>?
If they are legal then they seem like they would be easy to connect to the cRIO analog inputs and program to read the current draw thus exactly solving our problem.
These are available from several places including Trossen Robotics. |
IMHO these would be legal, assuming the supplier qualifies as FIRST legal. IMHO such hall effect units are the best solution because they are electrically isolated from the power leads.
Note that they are good for 500% overload i.e. 250 amps.
50 amps is probably not enough range for all conditions. You could probably replace the 50 amp parts with the 200 amp allegro parts. That would enable you to measure currents near stall conditions.
Just remember, FIRST isn't about the robot, just have fun, meet new people, and try to learn something new. Killing yourself with inhumane amounts of pressure just isn't fun for anyone.
- Ian W. [more] 
11-01-2009, 17:24
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