A pretty big HAM-ISI model update went in this morning and there is a new HAM ISI overview, first screnshot. There are four ECRs:
https://services1.ligo-la.caltech.edu/FRS/show_bug.cgi?id=26731 & https://dcc.ligo.org/LIGO-E2300014 --- Euler basis drive
https://services1.ligo-la.caltech.edu/FRS/show_bug.cgi?id=22101 & https://dcc.ligo.org/LIGO-E2200025 --- CPS BLRMS
https://services1.ligo-la.caltech.edu/FRS/show_bug.cgi?id=26050 & https://dcc.ligo.org/LIGO-T2200406 --- Blend fader
https://services1.ligo-la.caltech.edu/FRS/show_bug.cgi?id=26778 & https://dcc.ligo.org/E2300028 ---- HAM St0 Senscor
The first is adding infrastructure to allow doing Euler basis suspoint drive to the ISI, allowing drives on the table that align with the Euler basis DOFs of the top stage of each of the suspensions. THis is done by loading in the appropriate elements of the suspoint align matrix, now link on the ISI overview under the ST1 BLEND block. Clicking on the suspoint drive flag will open the filter banks that serve as the inputs for the excitations.
Second ECR is some new blrms code for monitoring cps noise. Still need to think about tests for monitoring.
Third is the biggest part, adding the channel fader blend switching like HAM8 has been using for a while now. This gives much more flexibility with the blend filters, blends can use more than one filter module and there is no settling time now for the blends, because each super-sensor (CPS+seismometer+filters) is being continuously computed. Blend switches now take 7-seconds, instead of 1-2 minutes. This needed some new blend screens (second & third screenshots). Second is the overview for all the blends, clicking on "engage" will start the switch to the new blend, so keeping this screen open could be dangerous. I need to add lights to expose more of the filter bank state for each blend. Third screen is the supersensor filter screen, opened by clicking on any of the grey related window buttons next to the blend bank name.
Added a path for sensor correction from the St0 L4Cs on HAM 4-5-7-8. Not commissioned yet, still need time to work on this, so not much to share here, but no part of it is turned on yet.
A similar update is coming for the BSCs next week, learned a lot today, so that should go smoother.
TJ has already do the GRD updates for the blend changes, and that is all working as it should now.
I've initialized and accepted the HAM8 SUSPOINT channels in the h1isiham8 model's SDF system were created as a result of these changes.
I've also removed 156 blend filter channels from h1isiham5 model that were "NOT FOUND" within its SDF system (i.e. they were replaced by different channel names for come in with the changes of the blend filter fader code). I've done so in the OBSERVE.snap, this may need to be done again in the model's SAFE.snap.