Reports until 10:25, Monday 09 April 2012
H2 SUS
jeffrey.garcia@LIGO.ORG - posted 10:25, Monday 09 April 2012 (2565)
H2 SUS ETMY testing summary
The following list summarizes the latest phase of testing on the H2ETMY Quad.

Diagonalization of TOP stage OSEMs:
Alog #2448
Data:
'~/sus/trunk/QUAD/H2/ETMY/SAGM0/Results/2012-03-14_H2SUSETMY_M0_Vert_Diagonalization_1000cts.pdf

'~/sus/trunk/QUAD/H2/ETMY/SAGR0/Results/2012-03-14_H2SUSETMY_M0_Yaw_Diagonalization_25cts.pdf



Lower stage OSEMs are aligned and centered - all four L1 stage OSEMs are fairly well-aligned, but two of the remaining L2 OSEMs need to be adjusted.  The remaining two are within range, but about ~5000cts from the limits.


Damping loop functionality -  Damping loops close robustly, but performance has not been fine-tuned.  The QUAD has gone several continuous nights with the damping loops closed and not triggering watchdogs.  Closed loop transfer functions with damping enabled have been taken.

Alog #2482


Latest top stage TFs:
aLOG 2445

Data: 
- ~/sus/trunk/QUAD/H2/ETMY/SAGM0/Data/2012-03-14_H2SUSETMY_M0_0p01to50Hz_allDoFs_tf.mat
- ~/sus/trunk/QUAD/H2/ETMY/SAGR0/Data/2012-03-15_H2SUSETMY_R0_0p01to50Hz_allDOFs_tf.mat


Hammer tests of QUAD cage with vibration absorbers off + ISI unlocked:
Data:
~/sus/trunk/QUAD/H2/ETMY/Common/VA_Testing/2012_03_26_h2etmy_hammer_test/