Had to pull these down to get access to the BSC3 North side actuators. Main ground wire also disconnected. Completely SEI subsystem fault for not carving out enough space to actually work around the HEPIs. Baskets are on the floor nearby with hardware. These really should remain out of the way until HEPI is more completed.
Completed the four Horizontal actuators attachment today. Plenty pain but had worse. Based on the Dial Indicators I may have knocked us out of the Yaw Spec. Jason logged 35urads CCW and I measure 111CW putting us at 76urads CW. This is averaging the four transversely oriented DIs and a few more or less here and there and we could be ok or we could be worse. So, best to just let IAS look and see. If it remains this smallish amount, SEI can likely crank it around with the HEPI DSCW Springs leaving the Actuators attached. Translational moves are insignificant and level shift only improve on the level--gotta get lucky somewhere! Still, the level should be check again as well.
Alastair H. Thomas V. Joe D. Greg G. The install of the steering mirrors went really smoothly today. Alignment will for Y-Arm will begin this weekend.
Alastair H. Thomas V. Joe D. Greg G. A rough alignment for ITM-Y was done on Sunday using the temporarily attached TCS viewport, a tripod, and a laser. The alignment went really smoothly with the only roughness being fighting the SM2 mount. BSC 1 had the blank removed and was temporarily fitted with the TCS viewport. The TCS viewport has been failing leak test checks due to a leak issue with the viton seal and the wedged optics. Using a laser and a tripod mount we approximated the TCS periscope location and shot down to Steering Mirror 1 in BSC 1 then to Steering Mirror 2 in BSC 2 and back to ITM-Y. The next step is to repeat this for ITM-X when the BSC 3 door can be put up on the East side and the West door removed.
I have added python 2.7 and nds2 client v0.10.4 software to x1boot.
Patrick, Dave
To test reconnection rates of conlog vs edcu, h1susetmy model was stopped for 30mins this afternoon and restarted at 16:47.
Mitchell & I got the four Vertical Actuators attached. We got started on the Horizontal at Pier2 (SW) when we ran out of time, steam & opportunity--Thomas & MarkL were getting ready to head into chamber.
TSC Install work at BSC1, 2, 3 from 16:00 to 00:00 Friday 8th Electronics cabling work at HAM6 Apollo craning various items in the LVEA Apollo working on spool install at End-X 09:02 Patrick & Thomas working on IOO Rotation State in H1-PSL enclosure 09:13 Hugh & Mitch HEPI actuator install at BSC3 09:20 Cheryl working at HAM2/3 and in the H1-PSL 10:05 Kyle working on GV6 10:15 Dave add SUS ITM-X to IOP watchdog 11:45 Justin transition LVEA South bay to local laser hazard 13:15 Frank & Louis pulling cables at End-Y 13:25 Dave recycling H1SUSETMY 13:40 Keita & Koji in H2-PSL enclosure working on OMC
Adjusted channel names in the master model of HEPI so channels would be recorded in the science frame - Per E1300742
Commited the new master model (hepitemplate.mdl) -r6229
Every HEPI model of H1 (11) was restarted.
Restarting HEPI-HAM2, and then the DAC added 25 channels to the science frame, as expected.
Restarting HEPI HAM3, HAM4, HAM5, HAM6, ETMX, ITMX, BS,ITMY, ETMY, and then the DAC, added 225 (9*25) to the science frame.
Work was performed under WP# 4256 which is now closed.This was performed in the scope of Bugzilla bug #385
Details are attached in log file.
We performed in the three-ring circus today. There were many items that needed to be craned into position in the LVEA in preparation for both this weekend's and next week's work: the Work Space cleanroom from the X Arm Spool area went to the south side of BSC1 for viewport installation, an additional work table and two shelving units for OFI assembly were needed in the West Bay and an enclosure was flown to the optical table at the foot of the mezzanine stairs for IO modification. All that activity took place this morning. Work related to the X End reconfiguration continued. The Work Platform was transported to Y End. The E-Module was picked, turned and placed by BSC5. The BSC Storage Container Top was hauled to the End to be mated with the bottom and then the entire unit was moved back to X Mid. The spool piece was transported from X Mid to X End and placed in the VEA. That concludes the dirty work on the checklist and the space is ready for a good cleaning on Monday morning. After lunch, we worked on modifying the Work Space cleanroom at the south door of BSC1 for TCS viewport install under clean conditions. The cleanroom and surrounding area were cleaned. Mark and Thomas started viewport installation at about 2:45 pm. Once Mark is done with that, he will make an entry into BSC3 to remove the dust/laser barriers so that BSC1-2 are accessible for TCS install over the weekend. The barriers will be stored in the west nozzle of BSC3.
Kyle Used LD to back "hung" 50 L/s turbo -> LD baseline at start of testing = 2.3 x 10-9 torr*L/sec helium indicated -> 20 sec audible helium blast at each gate annulus CFF joint on GV6 -> no response -> LD baseline at end of testing 2.2 x 10-9 torr*L/sec helium indicated -> Briefly energized annulus ion pump controller and observed expected cross-talk helium indication -> Restored GV6 annulus pumping to 50 L/s turbo backed by scroll pump -> Leaving GV6 hard-closed and will continue pumping combined annulus volume over the weekend
WP4225
I modified the h1iopsusb123 model to add ITMX into the software watchdog switching logic. At the request from Jeff K and Arnaud P, I ammended the WP4225 to include replacing the RMS+DC OSEM parts with the RMS-ONLY OSEM parts. Note these are temporary parts since they have their DC monitors completely removed. After the upgrade to RCG2.8 I will install the new OSEM parts which monitor DC but will not trigger on them.
The install procedure was: kill user models (h1susitmx, h1susitmy, h1susbs), restart the IOP, test the watchdogs to SEI BSC1,2,3, restart the user models. I pressed the DIAG-RESETs to clear latched IPC errors.
I modified the WD MEDM screens accordingly.
This closes out WP4225.
Kyle, Chris GV6 cammed hard closed during the night -> Vented combined annulus volume -> Removed 1.33-2.75 flex piping from North gate annulus pump port and installed blanks in its place -> Began pumping combined annulus volume -> Will helium leak test new joints after lunch GV6's 2-way selectable electro-pneumatic manifold was leaking instrument-air noticeably when left last night -> it is not leaking after GV6 has cammed closed. GV6's "unwillingness" to cam closed could be the result of insufficient net air pressure at the piston due to the excessive leak at the manifold or hard/non-compliant O-rings etc. or a combination of both, the important result is that it is not due to a "draped" gate annulus O-ring!
(Richard, Stefan) After some tail chasing (which included verifying that the spare PMC board works too), we found the 35MHz PMC EOM feed cable ripped out of the connector. Fixing this obviously restored all PSL functionality. A better connector is currently being installed. I also did a burt-restore to 10/26/2013 9am UTC (back when it was still working) to make sure we didn't pick up any spurious settings.
Phil fixed the connector - the PMC is now working again. The EOM cable length changed by maybe 2in in the process - we did not re-phase it now because the beam is needed for HAM2 work.
I corrected the macro substitutions for HEPI-EX in the SITEMAP.adl.
The sitemap was commited. -r6226
Pending changes regarding iscex were commited as well:
(Alexa, Sheila)
I am still puzzled by some of the mode matching measurements I took of ISCTEY. I had attemped to compare the accuracy of the Mode Master, Nanoscan, and Knife edge. They seem to approximately agree, but it's hard to say which is most accurate.
Regardless...I examined the beam profile exiting the table enclosure with all the lenses in place using the Mode Master. Refering to D1100607-v13, I found the optimal placement of the telescope to be: ALS-L6 13.5 inches from ALS-M9, ALS-L7 6 inches from ALS-M10. With an "a la mode" script, I determined the mode matching overlap with the TransMon secondary mirror to be 87% for the horizontal profile and 98.6% for the vertical profile. This overlap was computed with a 2.2mm waist at 3.5m from ALS-M11. The waist size and location was determined via T1200200-v1, D0902163, D1201457 as done in the ISCTEX MM alog with a correction of 4ft for the panel location change between EX and EY.
I have attached the scripts and MM snap shot. Note: the first matlab script is just the profile taken by the MM after the telescope, along with the overlap computation. The second script contains the full profile of ISCTEY, which is where some of my confusion persists.
I examined the beam width with the Mode Master, NanoScan, and Knife Edge on the ISCTEY with ALS-L5 in place (22inch from M6); however, prior to the telescope. Comparing the three measurements at approximately the same location away from the laser (z=0), I found:
Knife Edge:
z = 2.794m beam radii = .37mm
Nanoscan:
z = 2.756 m beam radii (horz) = .40mm beam radii (vert) = .43mm ** careful, data point was not taken at the exact same location as MM or knife edge
Mode Master:
z = 2.794m beam radii (horz) = .40mm beam radii (vert) = .42mm
These measurements are within ~ 10% of each other.
Something was wrong with communication between the cornner beckhoff plc2 and epics. When I tried to change something in an medm screen, it would not change, When I stoped PLC2, it would change the value on the medm screen. Also, on the LSC refl common mode board medm screen, things were just continuously flipping, altough on the twincat side nothing seemed to be changing. I tried commenting out all the changes I had made to the PLC, which didn't change the situation, tried rebuild all, clean all. I tried shutting everything on the etchercat machine down and running the installation scripts again, the epics did not come back. Dave restarted the epics gateway, and things seemed to come back (at least from the other PLCs). I was able to change values on medm screens, but the change didn't make it to the twincat side. Then patrick suggested rebooting h1ecatc1, so I did and that seems to have fixed the problem. Adding back in my changes one at a time did not reproduce the problem.
ALso, the timing system erros are back, Xend, Y end and Corner. I'm not sure why.
Yesterday, we swapped the end link chassis in End Y to the H1 version which has the safety terminals on a separate rail. We only realized now that this required a change in the system manager to remove the safety terminals left from the H2 system. The system is running again properly.
As Jason logged yesterday, the ITMx was good except for the Yaw. SEI turned the HEPI DSCW Springs to correct the Yaw error; we brough it from 1.6mrad to 35urads. We then checked and leveled the Optical Table. It was only barely out of spec with 0.3mm over the table; we got it to <0.2mm just hitting our 100urad goal. With the Optical Level using TGT402 for reference, the OT is 0.6mm high. I locked the HEPI after final DI readings for ACB work.
With these Yaw and Level adjustments, some unintended motion occur but they are small. Based on the Dial Indicators, the platform moved 0.1mm South, 0.2mm East, & 20urads CW since the observations IAS took. We should be in OK shape.
Attached find my log book pages for this saga. Thanks, to GregG & MitchellR
Thanks too of course to Jason & Doug for IAS.
J. Kissel, D. Barker, J. Batch, A. Pele Another harrowing day of front-end code changes. In summary, I've now completed and committed all the simulink / front-end model, MEDM screen, and macro file modifications for the HLTS, HSTS, and OMCS. This involved several more recompiles, reinstalls, restarts, and restores of all 10 models involved, a couple of more crashes and restarts of the DAQ, and a whole lot of eye-crossing details. The final modification -- to the OMCS front-end code -- has crashed the h1sush56 front end again (as the rest of these installs have, save h1sush2a for some reason), and almost undoubtedly because of the usual mx_stream failure. Thankfully, if did not crash the rest of the DAQ, so data taking should still hold over night. Though I'm confident every thing I've done is legit, we should give a day to get things back up and running before we officially release everything to LLO. (Though I know they're not interested in more changes until they vent next Wednesday.) Of note -- It was not until I got to the MC_MASTER parts today, and getting some feedback from ISC folks that I realized -- for calibrated, interferometric control channel purposes (think IMC_X, PRCL, SRCL, MICH, DARM) -- we need to send out the output of each LOCK filter bank (including the top stage) to the top level to be sent over IPC to the OAF / Calibration model. For those SUS that aren't involved in global control, we'll just terminate the unused connections at the *top-level* of each model (currently only h1susmc2 is *actually* using this type of spigot to form IMC_X, the remaining IFO DOFs' control signals are pulled out for calibration in the LSC model). There are a couple of ways to do the calibrated channel thing; I'll bring up with ISC / Systems as to how we want to do it (because it's currently inconsistent across the ISC / IO models). Unfortunately, this means I've gotta go back to the QUADs and BSFM, but I'll wait for the discussion to conclude before I do so. Next on the chopping block -- tackle the severe upgrades and merging needed on the HAUX / HTTS models. Then that finally, finally, OMG finally, will close out this gosh darn ECR. Then we can do it all over again with the watchdog modifications. #facepalm.
It would be worth checking that scripts use to restart the mx_stream each front-end (such as /etc/start_streamers.sh ) are simplified to just do an mx_stream restart (i.e. /etc/init.d/mx_stream restart). The /etc/init.d/mx_stream script is customized to specify the MX slot and destination port on the the data concentrator. Old versions of /etc/start_streamers.sh did not call /etc/init.d/mx_stream but did their own restart that used slot 0, port 0 instead of unique slot/port.
CDS has brought all associated front-ends back up (see details in LHO aLOG 8424), and we've confirmed that we can get damping loops running and excitations can be sent out. As such, these modifications described above are clear of flaws, and are therefore ready for LLO to install.
Last friday, Betsy and Travis added weight to the middle mass of SRM currently on the test stand, in order to center the flags with the osems cf alog 8367. A first round of TF have been taken before that, showing clean measurements. A new set have been taken monday night to assess that there's no major change. The new results are showing an excellent match with the previous ones
Results in attachments are described below :
(1) H1 SUS SRM M1-M1 (top mass) comparison between modeled and measured undamped transfer functions for the 6 dofs
(2) H1 SUS SRM M1-M1 comparison between modeled and measured damped transfer function for the 6 dofs
(3) H1 SUS SRM M1-M1 undamped TF comparison before and after adding weight to the middle mass
data have been commited under the svn
I meant SRM in the title
For acceptance review I also added the spectra of SRM during phase 2b (currently plugged on the test bench).
The first 3 pdfs are showing the effect of the top mass damping on each stage. The last two pdfs are comparing SRM spectra with other hsts suspensions (PRM and SR2) during phase 2b, damping off and damping on.
Everything looks good for all osem signals, damping is working fine by significantly reducing the Qs of the resonances, and both damping on and off spectra are similar to other HSTSs at the same 2b stage of testing.