Oops, Yesterday's results for DARM was wrong!
I got more convincing results now.
> (B) Are pos-offsets degrade the CARM and DARM so much (See, the quoted result below), is that true?
Here is the new results. It does change CARM a lot, but not DARM:
Matrix1 (normalised so that the diagonals are 1):
REFL f1 : 1.000000 0.000000 0.000008 -0.000005 0.000003
AS f2 : 0.000001 1.000000 0.000005 -0.003523 -0.000001
POP f1 : -3956.958708 -0.000183 1.000000 0.019064 0.000055
POP f2 : -32.766392 -0.154433 -0.072624 1.000000 0.024289
POP f2 : 922.415913 -0.006625 1.488912 0.042962 1.000000
(=Matrix 2)
Position offsets:
only CARM, 4.6e-16 (this number changed because I increased the resolution of the calculation)
Matrix3 (normalised by matrix 1):
REFL f1 : 0.039780 -0.000000 0.003656 0.000005 -0.000003
AS f2 : 0.000008 1.000017 0.000005 -0.003499 -0.000001
POP f1 : 159.146819 -0.000138 15.605155 0.019393 0.000055
POP f2 : 1.277223 -0.154415 0.047344 1.000008 0.024289
POP f2 : -35.422498 -0.006633 -1.886454 0.042963 1.000000
- CARM got a small position offset which degrades CARM signal 2 orders of mag (still the biggest signal in the sensor, though).
- DARM was not so bad, and probably the change of the DoF mixture is mostly not changed.
- Matrices don't change only with 1e-4 RAM. It changes with position offsets.
- I'll see how the matrix changes without position offsets but only with RAM effects, changing RAM levels.
- Again, above is C1 configuration, 1e-4 RAM level of PM level.
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I add a flow-chart drawing what the scripts do and how the scripts calculate the LSC matrix.
(1) First, you calculate the LSC matrix WITHOUT RAM or anything, just for a reference. This is the first matrix shown in the quoted post.
(2) The script calculates the LSC matrix with RAM. Also, the PDH signals for all 5 DoF are calculated. The PDH signals have offsets due to the RAM effect. The operating position offsets are saved for the next round.
(3) The script calculates the LSC matrix again, with RAM plus the offset of the operation points. The matrix is shown in the last part of the quoted post.
Now I am going to check (A) LSC matrices (matrix 2, the second matrix of above chart) with different RAM levels (B) Are pos-offsets degrade the CARM and DARM so much (See, the quated result below), is that true?
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