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Entry  Thu Dec 6 02:55:46 2012, Den, Update, Alignment, c1ass xarm_ass.pngyarm_ass.png
    Reply  Fri Dec 7 00:08:39 2012, rana, Update, Alignment, c1ass 
       Reply  Fri Dec 7 02:02:23 2012, Den, Update, Alignment, c1ass 
Message ID: 7795     Entry time: Thu Dec 6 02:55:46 2012     Reply to this: 7796
Author: Den 
Type: Update 
Category: Alignment 
Subject: c1ass 

Today I've set c1ass model to improve alignment of X and Y arms. I've added all measured parameters to ASS scripts. I've also added a script to c1ass.adl that downloads calculated OFFSETs to corresponding ASC filter banks and blocks outputs. It should be called after alignment convergence.

XARM phase rotation and sensing matrix

Demodulator Phase rotation, degrees
ETM_P_T -5
ETM_Y_T -10
ITM_P_T -62
ITM_Y_T 163

                                                           

I-quadrature ETM_PIT ETM_YAW ITM_PIT ITM_YAW
ETM_P_T

1.0000  

-0.6116 -0.560 0.5660
ETM_Y_T -0.1600 1.0000 0.2310 -0.3979
ITM_P_T -0.0794 0.4960 1.0000 -0.8791
ITM_Y_T 0.0624 -0.3903 -0.4787 1.0000

 

Output gains were (-0.5, 0.5, -0.25, -0.25). XARM Gain was set to 0.5.

xarm_ass.png

YARM phase rotation and sensing matrix

Demodulator Phase rotation, degrees
ETM_P_T 10
ETM_Y_T 0
ITM_P_T 107
ITM_Y_T -35

 

I-quadrature ETM_PIT ETM_YAW ITM_PIT ITM_YAW
ETM_P_T

1.0000  

0.3899 -0.515  -0.0309
ETM_Y_T 0.1017 1.0000 -0.3143 -0.5269
ITM_P_T -0.3505 0.0565 1.0000 -0.0945
ITM_Y_T -0.2085 -0.3607 0.6042 1.0000

Output gains were (-0.25, 0.25, 0.7, -0.7). YARM Gain was set to 0.8.

yarm_ass.png

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