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This will servo the DD phases to zero, so there will be no offset at the operating point. This will servo the DD phases to zero, so there will be no offset at the operating point.  After that script finishes, run
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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:		 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

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. After that script finishes, run 

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 

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)