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Entry  Tue Feb 12 00:14:00 2013, yuta, Update, Locking, PRM coil balancing 
    Reply  Sat Feb 16 17:27:26 2013, yuta, Update, SUS, PRM coil balanced PRM_f2a.png
       Reply  Sun Feb 17 19:27:19 2013, rana, Update, SUS, PRM coil balanced 
       Reply  Wed Feb 27 11:59:43 2013, yuta, Update, SUS, PRM/BS coil re-balanced PRM_f2a20130227.pngBS_f2a20130227.png
Message ID: 8182     Entry time: Wed Feb 27 11:59:43 2013     In reply to: 8093
Author: yuta 
Type: Update 
Category: SUS 
Subject: PRM/BS coil re-balanced 

I re-adjusted coil gains and f2a filters for PRM and BS.
I'm not sure what happened to PRM since I balanced on Feb 16(elog #8093).
Let's see if it helps PRMI locking or not.


========== PRM ==========

- Original DC coil gains

C1:SUS-PRM_ULCOIL_GAIN 1.049901772380000e+00
C1:SUS-PRM_URCOIL_GAIN -9.833961907160000e-01
C1:SUS-PRM_LRCOIL_GAIN 9.543042546630000e-01
C1:SUS-PRM_LLCOIL_GAIN -9.713568522590000e-01

- New DC coil gains


multiplier factors are :
UL = 0.928167
UR = 1.061448
LR = 0.941659
LL = 1.068726
Set C1:SUS-PRM_ULCOIL_GAIN to 0.974482231437
Set C1:SUS-PRM_URCOIL_GAIN to -1.04382410014
Set C1:SUS-PRM_LRCOIL_GAIN to 0.898628670041
Set C1:SUS-PRM_LLCOIL_GAIN to -1.03811466772

- New f2p filters

- measured coupling coefficients are :
P2P(POS=>PIT) = 0.023968
P2Y(POS=>YAW) = 0.007075

PRM_f2a20130227.png



========== BS ==========

- Original DC coil gains

C1:SUS-BS_ULCOIL_GAIN 1.037692431800000e+00
C1:SUS-BS_URCOIL_GAIN -1.016268296990000e+00
C1:SUS-BS_LRCOIL_GAIN 9.660800075010000e-01
C1:SUS-BS_LLCOIL_GAIN -9.791833500410000e-01

- New DC coil gains


multiplier factors are :
UL = 1.017855
UR = 1.023207
LR = 0.956184
LL = 1.002755
Set C1:SUS-BS_ULCOIL_GAIN to 1.0562177496
Set C1:SUS-BS_URCOIL_GAIN to -1.03985422464
Set C1:SUS-BS_LRCOIL_GAIN to 0.923750146975
Set C1:SUS-BS_LLCOIL_GAIN to -0.981880297098

- New f2p filters

- measured coupling coefficients are :
P2P(POS=>PIT) = 0.038251
P2Y(POS=>YAW) = -0.014677

BS_f2a20130227.png

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