iKAGRA Oplev Calibration
Here's summary of calibration of optical levers. K1:VIS-$(OPTIC)_TM_OPLEV_(PIT|YAW)_GAIN are the calibration factors which convert counts (normalized with quadrant sum) to urad. For IMC mirrors, FM1 "cal" in K1:VIS-$(OPTIC)_TM_OPLEV_(PIT|YAW) filter bank is also used for calibration
March Test Run (Mar 25 9:00 - Mar 31 17:00)
$(OPTIC) |
K1:VIS-$(OPTIC)_TM_OPLEV_PIT_GAIN |
K1:VIS-$(OPTIC)_TM_OPLEV_YAW_GAIN |
Quadrant sum |
Related klog |
EX |
|
|
|
988 (after collimator change) |
EY |
|
|
|
1031 (after collimator change) |
BS |
|
|
|
949,952 (EX, EY values in the klog are wrong because we changed collimators) |
PR3 |
|
|
|
|
MCI |
|
|
|
|
MCO |
|
|
|
|
MCE |
|
|
|
- Please put March values
April Test Run (Apr 11 9:00 - Apr 25 17:00)
$(OPTIC) |
K1:VIS-$(OPTIC)_TM_OPLEV_PIT_GAIN |
K1:VIS-$(OPTIC)_TM_OPLEV_YAW_GAIN |
Quadrant sum |
Related klog |
EX |
128.6 |
-131.1 |
1497 |
1436 (after folding) |
EY |
109.5 |
-103.2 |
10066 |
1374 (after folding) |
BS |
168.0 |
-195.0 |
12110 |
949,952 (EX, EY values in the klog are wrong because we changed collimators and configuration to folded) |
PR3 |
244.9 |
229.4 |
37882 |
932 (quadrant sum seems low compared with the value in the klog) |
MCI |
1.0 (FM1 58.1395) |
1.0 (FM1 56.1798) |
85345 |
569 (strange; calibration not reflected?) |
MCO |
12.5 (FM1 16.34 is turned off) |
12.5 (FM1 15.1976 is turned off) |
13144 |
569 (strange; calibration not reflected?) |
MCE |
1.0 (FM1 29.5858) |
1.0 (FM1 25.641) |
21806 |
569 (strange; calibration not reflected?) |
- April values are noted by T. Akutsu on Apr 19, 2016
- FM1 gains for IMC mirrors are noted by A. Shoda on Apr 20, 2016