Summarised what I did on this day, set to XHARD: SRC1, XSOFT: SRC2.
- Measurement ratio of each DOF actuators at 1Hz
Measured its ratio to tilt the same amount as ITMX and ETMX. REF setting the ratio of ITMX to ETMX to 1, subsequent measurements are after inserting the parameters.
FIG1: XHARD_PIT, FIG2:XHARD_YAW, FIG3: XSOFT_PIT, FIG4:XSOFT_YAW, FIG5: inserted parameter - Phasing to erase the Q signal of REFLQPD{1,2}_{RF17,45} in XHARD_PIT.
In this time, the phase to be turned was obtained from the I and Q signals of the transfer function of the excitation signal. However, the phase of the transfer function in the excitation signal is not fixed at 0 or 180 degrees, so it was calculated without phase information.
FIG6, FIG7 :REF before phasing, subsequent measurements after phasing. SEG8: the phase before phasing(Phase when measured.) FIG9: the turning phase(Now we can set the phase in "REFLWFS_ON_FOR_PRXARM"state of ASC_LOCK guardian) - Measured Sensing matrix(FIG10: XHARD_PIT, FIG11:XSOFT_PIT, FIG12: XSOFT_YAW, FIG13:XHARD_YAW)
HARD_PIT SOFT_PIT HARD_YAW SOFT_YAW QPD1_RF17 -117.57
61.828
35.0309
-22.9414
QPD2_RF17 -172.933
-40.541
-118.9079
-126.0031
QPD1_RF45 -157.549 106.966
-114.922
-376.829
QPD2_RF45 -21.800
-110.718
-97.013
-25.483
However, due to the bad coherence of QPD2RF45 of XHARD_PIT and QPD1RF17 of XSOFT_YAW, it was decided to use RF17 of QPD2 of REFL and RF45 of QPD1.
- Checked signal spespared(FIG14: SRC1_PIT, FIG15:SRC1_YAW, FIG16: SRC2_PIT, FIG17:SRC2_YAW)
Each degree of freedom is detected to 1 for the oplev signal. - Set VIS oplev signal
TM_ISC2OPLEV filter input ON and TM_LOCK filter input OFF for feedback to the peoplev signal - Measured plant of PIT signal(FIG18: SRC1_PIT,FIG19: SRC2_PIT)
- Set the plant and feed filter in SRC1_PIT(FIG20:The red line imported FIG 18., FIG21: Set integrator and elp filter at UGF 0.1 Hz.)
