9:24: system fully started, LGSW, ADSEC, FLAO, IRTC are ready. On the FLAO we load the
board setup 2014-05-16 - ARGOS cal onaxis.
We begin creating different subapertures sets for different slope computing algorithms. The parent subaperture set is 20141104_192000, the subapertures positions and numbers are not changed, just the pixel weights are variated.
SL. ALGO |
SUBAPS |
Notes |
CoG |
20141104_192000 |
Standard algo, px of each subap are normalized on the subap flux |
WWPA |
20141106_162533 |
px value multiplied by the sqrt of the px flux |
CoG Norm |
20141106_163503 |
all px are normalized on the overall pupil average flux |
ToCG48 |
20141106_180427 |
subaps thresholded to 48 ADU |
We reposition hexapod to send light into LGSW. We close the jitter loop we have these values:
Pupil |
PI X |
PI Y |
Blue |
-3.40 |
-0.15 |
Yellow |
-3.80 |
4.60 |
Red |
-2.30 |
-3.45 |
HEXAPOD: X = -3.02, Y = -6.27, Z = 4.38, Rx = -244, Ry = 27
Now we close the loop with few modes to better center the hexapod on the 3
FoVs:
HEXAPOD: X = -3.02, Y = -6.27, Z = 4.38, Rx = -244, Ry = 30
We close the loop on the 150modes without disturbance, in the meanwhile we build a reconstructor with 50modes.
REC: 50modes_ryb_300Hz_TTremoved
We load the new reconstructor, we set the diodes to the minimum current (0.03A = 500-1000 ADU/subap). We close the loop with gain [0.5, 0.3] and also the pupil loop is closed. Everything seems OK. The blue pupil goes away but it recovers by itself...
ARGOS TN |
FLAO TN |
Notes |
Res. |
20141106_175144 |
|
New 50modes REC, HIGH FLUX, CL, g= [0.5, 0.4] |
70 |
20141106_175655 |
|
New 50modes REC, LOW FLUX, CL, g= [0.5, 0.4] |
162 |
20141106_175745 |
|
" |
162 |
PBL controller crashes because it lost the connection with
BCU. Anyhow the loop is still running...
Acquisition of IMs for different slope computation algorithms
We power up the diodes to have a flux of about
8000 ADU/subap on each pupil.
11:20: we have to restart the controller because it lost the connection with
BCU. Then we have to recenter hexapod and PIs:
Pupil |
PI X |
PI Y |
Blue |
-1.67 |
-0.67 |
Yellow |
-1.00 |
0.73 |
Red |
-0.83 |
0.45 |
HEXAPOD: X = -3.02, Y = -6.27, Z = 4.38, Rx = -247, Ry = 32
We start calibrating the various slope algorithms, the pupil loop is closed (
PCL) and the jitter loop is open (
JOL). The acquisition sequence is the same for all the algos:
- acquire IM in OL
- generate a 10 modes REC, close the loop with it and acquire another IM
- generate a 50 modes REC, close the loop with it and acquire another IM
- generate a 150 modes REC
Algo |
IM |
REC |
Notes |
TCoG48 |
20141106_183040 |
10modes_ryb_1kHz_TTrm_Thres48 |
|
20141106_183808 |
50modes_ryb_1kHz_TTrm_Thres48 |
|
20141106_184216 |
150modes_ryb_1kHz_TTrm_Thres48 |
|
CoG Norm |
20141106_184613 |
wrong |
|
20141106_184613 |
10modes_ryb_1kHz_TTrm_CoGNorm |
|
20141106_185448 |
50modes_ryb_1kHz_TTrm_CoGNorm |
|
20141106_185902 |
150modes_ryb_1kHz_TTrm_CoGNorm |
|
WWPA |
20141106_190503 |
10modes_ryb_1kHz_TTrm_WWPA |
|
20141106_190927 |
50modes_ryb_1kHz_TTrm_WWPA |
|
20141106_191350 |
150modes_ryb_1kHz_TTrm_WWPA |
|
CoG |
20141106_192014 |
10modes_ryb_1kHz_TTrm_CoG |
|
20141106_192431 |
50modes_ryb_1kHz_TTrm_CoG |
|
20141106_192845 |
150modes_ryb_1kHz_TTrm_CoG |
|
Acquisition of slope offset
Now we optimize the PSF on CCD47 by closing the FLAO loop with 400 modes, we use
FLAO REC: 20130919_014135, we put the white light source at 80 steps. At this point we acquire the slope offset for all the different slope computation algorithms, in the meanwhile we acquire snapshots on both ARGOS and FLAO:
Algo |
Slope Offset |
ARGOS TN |
FLAO TN |
Res. |
CoG |
20141106_195056 |
20141106_195214 |
20141106_194936 |
46 |
20141106_195236 |
|
46 |
WWPA |
20141106_195643 |
20141106_195658 |
20141106_195535 |
37 |
20141106_195724 |
|
40 |
CoGNorm |
20141106_195833 |
20141106_195839 |
20141106_195721 |
42 |
20141106_195900 |
|
42 |
TCoG48 |
20141106_200019 |
20141106_200032 |
20141106_195909 |
33 |
20141106_200058 |
|
33 |
High flux test
We close now the loop on ARGOS, PCL, JOL, we load the
0.8" disturbance.
Algo |
ARGOS TN |
FLAO TN |
Res. |
OL |
20141106_200903 |
20141106_200741 |
466 |
20141106_200923 |
|
465 |
20141106_200945 |
|
465 |
CoG |
20141106_200720 |
20141106_200554 |
59 |
20141106_200744 |
20141106_200639 |
59 |
WWPA |
20141106_201451 |
20141106_201300 |
37 |
20141106_201516 |
20141106_201419 |
37 |
20141106_201540 |
|
37 |
CoGNorm |
20141106_202117 |
20141106_201959 |
54 |
20141106_202144 |
20141106_202128 |
50 |
20141106_202202 |
|
51 |
TCoG48 |
20141106_203501 |
20141106_203337 |
38 |
20141106_203521 |
20141106_203456 |
35 |
20141106_203539 |
|
38 |
Low flux test
Algo |
ARGOS TN |
FLAO TN |
Res. |
Notes |
CoG |
20141106_205751 |
20141106_205652 |
160 |
g=[0.4,0.3,0.1], POL |
20141106_205813 |
|
160 |
" |
WWPA |
20141106_210340 |
|
94 |
g=[0.5,0.4,0.2], POL |
20141106_210405 |
20141106_210222 |
1117 |
Loop fails! |
20141106_210603 |
20141106_210442 |
101 |
g=[0.4,0.3,0.1] |
20141106_210625 |
|
101 |
same gain, PCL |
CoG |
20141106_211836 |
20141106_211714 |
183 |
g=[0.5,0.3,0.0], POL |
20141106_211858 |
|
168 |
" |
TCoG48 |
20141106_212356 |
|
87 |
g=[0.5,0.3,0.2] |
20141106_212433 |
20141106_212233 |
90 |
g=[0.5,0.4,0.3] |
20141106_212456 |
|
89 |
" |
20141106_212531 |
|
89 |
" |
20141106_212715 |
20141106_212550 |
97 |
g=[0.5,0.4,0.3], PCL |
20141106_212739 |
|
95 |
" |
20141106_212818 |
20141106_212649 |
95 |
" |
WWPA |
20141106_213343 |
20141106_213220 |
98 |
g=[0.5,0.4,0.3] |
20141106_213405 |
20141106_213304 |
98 |
" |
14:30 : we have repeated problems with
BCU: it becomes unreachable and we have to reset it (it happens 3 times in a row)