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Diagonalize the DRMI Length Control ## page was renamed from Diagonalize the DRMI Length Control
== Diagonalize the DRMI Length Control ==

-------

===== This should be run while the DRM is locked & aligned =====
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{{{
setDDphases }}}

This will servo the DD phases to zero, so there will be no offset at the operating point.
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{{{
Use the matlab command: loadDRMImatrixData('DRMImatrix/DAT_090612-1244839443'); }}}

Run this matlab command, which will give you a tdswrite command:

{{{
Your command to copy and paste into a terminal is:
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tdswrite C1:LSC-ITMTRX_92 -1.1198 \
C1:LSC-ITMTRX_b2 2.8519 \
C1:LSC-ITMTRX_d2 -0.17059 \
C1:LSC-ITMTRX_f2 0.28573 \
C1:LSC-ITMTRX_122 -0.089699 \
C1:LSC-ITMTRX_142 -0.065893 \
C1:LSC-ITMTRX_95 0.30456 \
C1:LSC-ITMTRX_b5 -0.69205 \
C1:LSC-ITMTRX_d5 0.046096 \
C1:LSC-ITMTRX_f5 -0.074476 \
C1:LSC-ITMTRX_125 0.022033 \
C1:LSC-ITMTRX_145 0.0052107 \
C1:LSC-ITMTRX_93 -1.3128 \
C1:LSC-ITMTRX_b3 2.6644 \
C1:LSC-ITMTRX_d3 -1.5412 \
C1:LSC-ITMTRX_f3 -0.82075 \
C1:LSC-ITMTRX_123 -0.49044 \
C1:LSC-ITMTRX_143 0.070841 \
C1:LSC-ITMTRX_33 0 \
C1:LSC-ITMTRX_42 0 \
C1:LSC-ITMTRX_155 0 }}}
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You can copy & paste this command into a terminal to load the new input matrix values.

Diagonalize the DRMI Length Control

This should be run while the DRM is locked & aligned

In the $SCRIPTS/LSC directory, run 

setDDphases

This will servo the DD phases to zero, so there will be no offset at the operating point. 

senseDRM

This will measure the plant, giving you info along the way and putting the results into some files. The last line of screen output should give you a matlab command to run, such as 

Use the matlab command: loadDRMImatrixData('DRMImatrix/DAT_090612-1244839443');

Run this matlab command, which will give you a tdswrite command: 

Your command to copy and paste into a terminal is:


tdswrite C1:LSC-ITMTRX_92 -1.1198 \
C1:LSC-ITMTRX_b2 2.8519 \
C1:LSC-ITMTRX_d2 -0.17059 \
C1:LSC-ITMTRX_f2 0.28573 \
C1:LSC-ITMTRX_122 -0.089699 \
C1:LSC-ITMTRX_142 -0.065893 \
C1:LSC-ITMTRX_95 0.30456 \
C1:LSC-ITMTRX_b5 -0.69205 \
C1:LSC-ITMTRX_d5 0.046096 \
C1:LSC-ITMTRX_f5 -0.074476 \
C1:LSC-ITMTRX_125 0.022033 \
C1:LSC-ITMTRX_145 0.0052107 \
C1:LSC-ITMTRX_93 -1.3128 \
C1:LSC-ITMTRX_b3 2.6644 \
C1:LSC-ITMTRX_d3 -1.5412 \
C1:LSC-ITMTRX_f3 -0.82075 \
C1:LSC-ITMTRX_123 -0.49044 \
C1:LSC-ITMTRX_143 0.070841 \
C1:LSC-ITMTRX_33 0 \
C1:LSC-ITMTRX_42 0 \
C1:LSC-ITMTRX_155 0

You can copy & paste this command into a terminal to load the new input matrix values.

How_To/Diagonalize_the_DRMI_Length_Control (last edited 2012-01-03 23:02:45 by localhost)