View Single Post
  #9   Spotlight this post!  
Unread 13-01-2009, 22:50
Chris_Elston's Avatar
Chris_Elston Chris_Elston is offline
Controls Engineer
AKA: chakorules
FRC #1501 (Team THRUST)
Team Role: Engineer
 
Join Date: Feb 2004
Rookie Year: 2001
Location: Huntington, Indiana
Posts: 746
Chris_Elston has a reputation beyond reputeChris_Elston has a reputation beyond reputeChris_Elston has a reputation beyond reputeChris_Elston has a reputation beyond reputeChris_Elston has a reputation beyond reputeChris_Elston has a reputation beyond reputeChris_Elston has a reputation beyond reputeChris_Elston has a reputation beyond reputeChris_Elston has a reputation beyond reputeChris_Elston has a reputation beyond reputeChris_Elston has a reputation beyond repute
Re: can we control the amount of air to control the speed of the cylinder?

The ultimate solution would be to purchase an analog output card for the cRIO. Though I dunno if it would be legal.

Purchase a 9263 4-channel analog output 0-10V output module to control a pneumatic analog regulator.

Next you'll need a 12VDC version of an analog regulator.

Last you'll need an external piloted valve because most KOP valves are internal pilot and won't trip the spool below 30PSI if you want to control PSI down to 1 PSI use an external pilot valve and vary the regulator with an analog 0-10V control signal with a full scale of 60 PSI is equal to 10volts.

You'll have to post some questions to make sure all the above is legal though...

Attached is a spec sheet on something I was checking into.
Attached Files
File Type: pdf VP10%20ElecPressReg.pdf (32.3 KB, 74 views)
__________________
Team T.H.R.U.S.T. 1501
Download all of our past robot's source code here:Repository

Favorite CD quote:
"That can't be their 'bot. not nearly enough (if any) rivets to be a 1501 machine." ~RogerR: Team #1369