Go to Post Each poster can bring respect to the topic, whether agreeing with it or not. - JaneYoung [more]
Home
Go Back   Chief Delphi > Technical > Control System > Sensors
CD-Media   CD-Spy  
portal register members calendar search Today's Posts Mark Forums Read FAQ rules

 
 
 
Thread Tools Rate Thread Display Modes
Prev Previous Post   Next Post Next
  #5   Spotlight this post!  
Unread 01-11-2010, 16:19
Alan Anderson's Avatar
Alan Anderson Alan Anderson is offline
Software Architect
FRC #0045 (TechnoKats)
Team Role: Mentor
 
Join Date: Feb 2004
Rookie Year: 2004
Location: Kokomo, Indiana
Posts: 9,112
Alan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond repute
Re: Absoloute Potentiometer for swerve drive

Quote:
Originally Posted by JewishDan18 View Post
We wanted to get be able to make more than one full twist of the modules, which the magnetic encoders are able to do, but the zeroing once again becomes an issue.
Depending on how the rotation motor is connected to the module, there are several possible ways to get multiple turns of the module to correspond to a single turn of the sensor. If you use chain, it's easy to put the sensor on an appropriately-sized "idler" sprocket.

There is also a software solution. Each time the swerve module makes a full rotation, save the "twist number" to a file. When initializing the system, read that file. This does fail if someone turns the module too far by hand while the robot is not powered off.

The simplest answer is to make the modules capable of rotating without limit so you don't need to keep track of how many full turns they've made. That's not necessarily the easiest answer, though.
Reply With Quote
 


Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Swerve Drive DuskProgrammer Programming 7 16-01-2010 09:29
Swerve Drive Team1710 Technical Discussion 11 07-03-2009 09:58
Swerve drive 4, 2+2? kirtar Technical Discussion 18 02-04-2008 06:58
A Swerve Drive Question lndnny Technical Discussion 10 20-07-2006 08:09
Swerve Drive Jeff Waegelin Technical Discussion 14 17-09-2001 08:06


All times are GMT -5. The time now is 08:06.

The Chief Delphi Forums are sponsored by Innovation First International, Inc.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright © Chief Delphi