-- RunaBriguglio - 05 Feb 2016

Measurement of ff matrix

first test, 2 iterations

20160205_140944 data seem good, no bad actuators

final test 10 iterations

20160205_143309

new calibration installed by copying all fits files into /calib/adsec/672a/data/

RRH installed

no alignment as yesterday

new alignment:

-3.37 -0.93 3.745 -88 -548 0

difference with respect to last position: -1.44 -0.33 0.84 63 -255!!!!

large shift of the detector mask

we tested flattening with old influence functions (450 modes) obtaining a worse result at the central membrane. in facts, the intersection mask in the flattening computation has an elliptical central obstruction.

noise test

we collect 20 frames as a burst and compute the difference wrt mean phasemap

noise measusurement 20160205_175600_noise

recovering of fringes density at the central hole

fsm_load_shape(myflat, force_max_mode=200); myflat=20160205_005424

we observed that the fringes density is reducing at the central hole, and no signal loss at the edge

new test with force_max_mode=150 , 100 : improving at the center, not changing at the edge

test of if sampling at low resolution
Tracknum modes amp niter WFE ini WFE end notes
20160205_184114 0,250 force_scale=0.5/0.3 3     discarded
20160205_184301 251,500 force_scale=0.5/0.3 3     discarded
20160205_184741 0,250   3      
20160205_184910 251,500   3      
20160205_185116 251,500 60e-9 3      
20160205_185303 501,639 40e-9        
20160205_191531 100,120   3     for testing
20160205_194800 100,120          
20160205_195132 100,105          
             

we restart from the scratch
Tracknum modes amp niter WFE ini WFE end notes
20160205_213938 0-250   3      
20160205_ 251-500   3     no trigger
20160205_214253 501-640 50e-9 3     no trigger
20160205_225135 215-500   3      
20160205_225654 501-640 50e-9 3      
20160205_225809 0-250   3      
20160206_002724 0-250   3      
20160206_002853 251-500          
20160206_003034 501-640 50e-9        
20160206_003133 0-250          
20160206_003325 251-500          
20160206_003452 501-640          
20160206_004707 500     0.3    
20160206_004935 0-250          
20160206_005122 251-500 80e-9        
20160206_005256 501-640 30        
             
20160205_003400_noise

20160205_005300_noise

hexapod position -3.32 -0.95 3.73 -83 -543 0
Topic revision: r7 - 06 Feb 2016, RunaBriguglio
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