40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
  40m Log  Not logged in ELOG logo
Entry  Wed Jun 29 01:23:21 2011, haixing, Update, SUS, issues in the current quad maglev system config_2.png
    Reply  Wed Jun 29 11:13:13 2011, Jenne, Update, SUS, issues in the current quad maglev system 
Message ID: 4907     Entry time: Wed Jun 29 11:13:13 2011     In reply to: 4906
Author: Jenne 
Type: Update 
Category: SUS 
Subject: issues in the current quad maglev system 

magnetQuote


(1) DC magnetic force is imbalanced, and we found that one pair has a stronger DC force than others. This should
be able to solved simply by replacing them with magnets have comparable strength to others.

 I don't know if this would work, but it might be worth a try:

You've achieved single levitation before, with fairly good stability.  Can you try taking each magnet + coil and finding the DC coil current required to hold a mass at a given position?  If you can hold the same mass at the same place with all the different magnets+coils, then you're exerting the same force against gravity, so your DC forces are balanced. 

ELOG V3.1.3-