Calibrations

9:30: start of operations

HEXA -2.03 -7.25 4.47 -31.74 187 0
We have a problem with BCU: when we change subapertures the HVC goes to limit. We stop the update to HVC before configuring:

slopeComputer.disableHVCUpdate()

We open the jitter & pupil loops, we take snapshots to check swing arm vibrations:

TN Notes Res
20141104_173448 swing arm vibrations check, JOL 179
20141104_173522 " 179
20141104_174007 JCL 139
20141104_173448-20141104_174007_modalplot.jpg

10:30: we restore the 10modes recontructor for the blue pupil. Loop frequency = 320Hz. Offload to Hexapod is disabled. Modes 2-10, gain= 0.3.

Then we increase the loop frequency to 1kHz, gain >0.28 oscillates. JCL + correcting TT on LGSW are conflicting.

PI X Y
Blue -0.72 -2.21
Yellow -4.12 0.25
Red 2.60 -4.47
Setting the PI offset to a static value seems to increase the loop stability. We rise the mode number up to 10 and gain= 0.2. Problem with offload...

We generate a new rec from the 300Hz IM: REC: 10modes_ryb_300Hz and we close the loop with gain= 0.3.

TN Notes Res
20141104_184331 g(2-10)=0.3, POL 295
20141104_184527 bad, pupil loop was converging 366
20141104_184557 PCL 365
20141104_184812 g(TT+10modes)=0.3 530
20141104_185107 g(2-10)=0.3, JCL 563
20141104_184331-20141104_185107_modalplot.jpg

We record a new IM with the 10modes loop closed at low gain (0.05).

IM: 20141104_181359 shift=2

20141104_191359_IM_shift2_10CL.png

REC: 50modes_ryb_300Hz

we close the loop with 50modes and a gain up to 0.65. It works, so we load also a disturb equivalent to 0.8" (oversampling=300Hz, wind = 5m/s).

TN Notes Res
20141104_193819 OL 480
20141104_193906 OL 479
20141104_194000 OL 480
20141104_194215 g=0.1 82
20141104_194340 g=0.3 54
20141104_194601 g=0.7 97
20141104_193819-20141104_194601_modalplot.jpg

12:50: new REC, just yellow pupil

REC: 50modes_y_300Hz

TN Notes Res
20141104_195042 Y, g=0.7 249
20141104_195042-20141104_195042_modalplot.jpg

We record an IM at 150modes closing the loop on 50 with the old rec (ryb).

IM: 20141104_195640 wrong, the shell was not flattened...

IM: 20141104_195926 OK

20141104_195926_IM_display_shift.png

20141104_195926_IM_shift2.png

REC: 150modes_y_300Hz

TN Notes Res
20141104_201015 Y, g(0-50)=0.6, g(50-150)=0.3 138
20141104_201306 Y, g(0-50)=0.65, g(50-150)=0.6 176
20141104_201015-20141104_201306_modalplot.jpg

Now we set the loop frequency to 1kHz, diodes current to 0.2A (equivalent to 4000 ADU/subap), we load disturb equivalent to 0.8".

NB: until now we used OVS disturbance function to load the disturb, this is correct only if the WFS is running at slower speed than the disturb. In this case (WFS @ 1kHz) we should use WFS disturbance

TN Notes Res
20141104_202230 Y, g(0-50)=0.3, g(50-150)=0.2 122
20141104_202309 Y, g(0-50)=0.5, g(50-150)=0.3 251
20141104_202230-20141104_202309_modalplot.jpg

REC: 150modes_ryb_300Hz

13:30: stop to refill LBC

13:45: we start FLAO board

DARK: 20141104_204154

TN Notes
20141104_205523 after rebooting arbitrator

14:21: light is back on LGSW

PI X Y
Blue -3.47 -0.56
Yellow -5 3.45
Red 0.14 -5.76

TN Notes Res
20141104_213058 OL 470
20141104_213135 OL 471
20141104_213340 OL 471
20141104_213552 g(0-50)=0.5, g(50-150)=0.3 70
20141104_213632 g(0-50)=0.3, g(50-150)=0.2 70
20141104_213058-20141104_213632_modalplot.jpg

Now we load disturb equivalent to 1.2", v=15m/s,

TN Notes Res
20141104_214012 OL 609
20141104_214042 OL 609
20141104_214203 g(0-50)=0.3, g(50-150)=0.2 80
20141104_214012-20141104_214203_modalplot.jpg

We remove disturb, we flatten the mirror and we acquire slope offset:

SO: 20141104_214442

TN Notes Res
20141104_214643 g(0-50)=0.3, h(50-150)=0.2 80
20141104_214756 OL 608
20141104_214942 g(0-50)=0.6, h(50-150)=0.4 83
20141104_215002 " 80
20141104_215638 noTT, JOL, g(2-50)=0.6, h(50-150)=0.4 82
20141104_215734 noTT, JCL, g(2-50)=0.6, h(50-150)=0.4 81
20141104_214643-20141104_215734_modalplot.jpg

15:00: we close the loop on FLAO, correcting 400modes. We set PIs to the following static position:

PI X Y
Blue -3.87 1.46
Yellow -3.23 4.49
Red -2.57 -4.14

We focus the Z stage on FLAO: Z= 37mm

SO: 20141104_221601 optimized for CCD47 and IRTC images

TN Notes Res
20141104_221740 FLAO CL 60
20141104_221811 " 75
20141104_222248 ARGOS CL, g(0-50)=0.6, g(50-150)=0.4 85
20141104_222316 " 87
20141104_221740-20141104_222316_modalplot.jpg

15:25: stop operation with CalUnit

Pockels cells test with IS

15:30: after operations on the first half of the day we perform a PockelsCellsTransmission test using the Internal Sources. The system configuration is the following:

PUPIL Motor X Motor Y PI X PI Y
Blue 747 474 3.38 -0.70
Yellow 296 673 1.21 0.32
Red 416 657 -0.98 0.04

TN Sup
'20141104_223443', '20141104_223759' B=75, Y=113, R=95
I Attachment Action Size Date Who Comment
20141104_173448-20141104_174007_modalplot.jpgjpg 20141104_173448-20141104_174007_modalplot.jpg manage 34 K 12 Nov 2014 - 13:26 MarcoBonaglia  
20141104_184331-20141104_185107_modalplot.jpgjpg 20141104_184331-20141104_185107_modalplot.jpg manage 42 K 12 Nov 2014 - 13:44 MarcoBonaglia  
20141104_191359_IM_shift2_10CL.pngpng 20141104_191359_IM_shift2_10CL.png manage 633 K 12 Nov 2014 - 08:56 MarcoBonaglia  
20141104_193819-20141104_194601_modalplot.jpgjpg 20141104_193819-20141104_194601_modalplot.jpg manage 51 K 12 Nov 2014 - 13:48 MarcoBonaglia  
20141104_195042-20141104_195042_Vars.savsav 20141104_195042-20141104_195042_Vars.sav manage 3 K 12 Nov 2014 - 13:53 MarcoBonaglia  
20141104_195042-20141104_195042_modalplot.jpgjpg 20141104_195042-20141104_195042_modalplot.jpg manage 31 K 12 Nov 2014 - 13:57 MarcoBonaglia  
20141104_195926_IM_display_shift.pngpng 20141104_195926_IM_display_shift.png manage 240 K 12 Nov 2014 - 08:56 MarcoBonaglia  
20141104_195926_IM_shift2.pngpng 20141104_195926_IM_shift2.png manage 617 K 12 Nov 2014 - 08:56 MarcoBonaglia  
20141104_201015-20141104_201306_modalplot.jpgjpg 20141104_201015-20141104_201306_modalplot.jpg manage 44 K 12 Nov 2014 - 13:57 MarcoBonaglia  
20141104_202230-20141104_202309_modalplot.jpgjpg 20141104_202230-20141104_202309_modalplot.jpg manage 46 K 12 Nov 2014 - 14:03 MarcoBonaglia  
20141104_213058-20141104_213632_modalplot.jpgjpg 20141104_213058-20141104_213632_modalplot.jpg manage 51 K 12 Nov 2014 - 14:42 MarcoBonaglia  
20141104_214012-20141104_214203_modalplot.jpgjpg 20141104_214012-20141104_214203_modalplot.jpg manage 44 K 12 Nov 2014 - 14:44 MarcoBonaglia  
20141104_214643-20141104_215002_modalplot.jpgjpg 20141104_214643-20141104_215002_modalplot.jpg manage 54 K 13 Nov 2014 - 13:40 MarcoBonaglia  
20141104_214643-20141104_215734_modalplot.jpgjpg 20141104_214643-20141104_215734_modalplot.jpg manage 57 K 13 Nov 2014 - 13:43 MarcoBonaglia  
20141104_214643-20141104_222316_modalplot.jpgjpg 20141104_214643-20141104_222316_modalplot.jpg manage 60 K 13 Nov 2014 - 13:32 MarcoBonaglia  
20141104_221740-20141104_222316_modalplot.jpgjpg 20141104_221740-20141104_222316_modalplot.jpg manage 54 K 13 Nov 2014 - 13:40 MarcoBonaglia  
20141104_221740-20141104_223443_modalplot.jpgjpg 20141104_221740-20141104_223443_modalplot.jpg manage 45 K 13 Nov 2014 - 13:32 MarcoBonaglia  
Topic revision: r6 - 13 Nov 2014, MarcoBonaglia
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