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CAL (General)
takahiro.yamamoto - 19:10 Thursday 05 June 2025 (34074) Print this report
Some CAL lines in high frequency are not enabled

CAL lines in high frequency for the cross-check purpose doesn't seem to be enabled.
Attachment shows the comparison plots at calibration lines between DARM and witnesses below 100Hz (Fig.1) and above 100Hz (Fig.2).

Essential calibration lines shown below are enabled. So line tracking can be done in minimum.
- EXTM: 27.650Hz for actuator efficiency
- Px1: 28.670Hz for actuator efficiency
- Px2: 31.530Hz for optical gain and cavity pole
- Px3: 507.890Hz for optical gain and cavity pole

And also, a line for the cross-check between Pcal-X and Pcal-Y are also enabled.
- Py1: 32.790Hz for cross-check between Pcal-X and Pcal-Y

On the other hand, lines for checking HF doesn't seem to be enabled. Roughly 1-2hrs integration to see them on DARM. So it's difficult to see on the quick check. But now they are not seen also on RxPD. We need to consider permissions (is this change acceptable), procedures (how to enable them), and a schedule (when they can be enabled), etc.
- Px4: 2002.010Hz
- Px5: 2998.730Hz

Images attached to this report
Comments to this report:
Shingo Hido - 14:17 Friday 13 June 2025 (34199) Print this report

This is due to the parameters "K1:CAL-PCAL_EX_CLINE_MTRX_1_{4, 5}" being set to 0.
Therefore, I changed the values to 1.
After that, I confirm that the high-frequency lines are excited in RxPD (Fig.1).

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