CAL (General)takahiro.yamamoto - 10:12 Thursday 16 April 2020 (14184)
Print this reportCalibration weekly measurementWe performed a weekly calibration measurement. ResG(2.9,10,20) is applied as FM5 of DARM2.
5:30 - Disabled OBSERVING mode
5:30 - DARM Transfer function measurement
6:30 - Hardware Injection test from X-end PCAL
7:15 - Duotone injection test
9:00 - Enabled OBSERVING mode
Images attached to this report
Comments to this report:
tomotada.akutsu - 13:11 Thursday 16 April 2020 (14191)
Print this report
Let me ask a simple question: it seems the open-loop gain is different about 5dB from that on Mar 10. Is it ok???
yuki.inoue - 13:30 Thursday 16 April 2020 (14193)
Print this reportThis 5dB is from TransCOMP in OMC digital filter.
In last fitting, we cannot find this changes.
So, we misestimated the parameter in last time.
But, we use the correct filter now.
I think we should compare with Apr.7 measurement.
Main change between Apr.7 and Today's measurement is only G_res function in DARM_2 (in my understanding).
yuki.inoue - 13:31 Thursday 16 April 2020 (14194)
Print this reportThe estimated parameter is following.