Displaying reports 68921-68940 of 77129.Go to page Start 3443 3444 3445 3446 3447 3448 3449 3450 3451 End
Reports until 10:46, Tuesday 12 November 2013
LHO General (CDS, PEM)
patrick.thomas@LIGO.ORG - posted 10:46, Tuesday 12 November 2013 (8475)
Moved LVEA, DR, EX and EY dust monitors to test code on h0epics
These are now running the same code as the dust monitors in the optics labs (alog 8294).

The EDCU channels will be updated with the next DAQ restart.

If there are no problems after a week, I will create a tagged release and update the target directories.
H1 CDS
david.barker@LIGO.ORG - posted 09:48, Tuesday 12 November 2013 (8474)
Upgrade to RCG2.8 started

We are upgrading H1 to RCG2.8 this morning, all front ends will be restarted and the DAQ will need to be shutdown for extended periods.

H1 TCS (TCS)
thomas.vo@LIGO.ORG - posted 18:49, Monday 11 November 2013 (8473)
TCS corner station MEDM screens
Alastair H., Thomas V.

We took the MEDM screens that were recently developed at LLO and added&committed them into SVN and then checked them out to the LHO userapps/release/tcs/common/ area. Then we changed the macro substitutions to conform with LHO's sitemap, the channels showed up nicely so it was a good success.
H1 CDS
david.barker@LIGO.ORG - posted 18:14, Monday 11 November 2013 (8472)
preparation for 2.8 upgrade

Jim and Dave. We upgraded all mdl files used in the userapps area from 2010a to 2012b. To verify that we did not break anything, all the models were recompiled against RCG2.7.2.

The only problems we encountered were with the files hepitemplate, isihammaster and isi2stagemaster. The isihammaster was resolved by saving with 2012b, re-opening and resaving. The other two files required model changes. I'll leave the details to Hugo's alog.

Some IOP models (SUS watchdogs) reference mdl files in the advLigoRTS area. Some of these were created against very old matlab versions (2008a, 2008b for example). We have left these alone on our upgrade, but perhaps all rtscore mdl files should be upgraded at some point.

We only worked with RCG2.7.2 today, and only compiled (did not install). All 2010a versions of the mdl files were saved at .mdl.2010a files so we will easily be able to revert to 2010a  if we encounter problems during the 2.8 rebuild.

H1 SYS (IOO, SYS)
stefan.ballmer@LIGO.ORG - posted 17:46, Monday 11 November 2013 (8471)
EPICS communication link with keep-alive verification
I adapted the previously existing code for bi-directional RTS-to-RTS and RTS-to-Beckhoff communication to work with an EPICS link. The code uses a keep-alive bit on the channel to verify the link is still up. Its current time-out is set to 10sec (same as DAC-ADC-based version).

New files:
 - isc/common/src/RtCommEPICS.c    : the c-code for receiving (in svn) - this is an adapted version of RtCommunication.c
 - isc/common/models/STATECOMM.mdl : Added a new function block for the EPICS-based link

Currently I am running the link in loopback test mode between h1odcmaster and h1odcx.

Images attached to this report
H1 IOO (IOO)
stefan.ballmer@LIGO.ORG - posted 17:24, Monday 11 November 2013 - last comment - 17:42, Monday 11 November 2013(8469)
HAM2/HAM3 work
Cheryl, Peter, Joe Gleason, Stefan

After making sure the input mode cleaner was flashing with a good alignment, we did the following alignment work for HAM2 and HAM3:
- IM1/IM2 tweak-up to center through the Faraday.
- IM3/IM4 tweak-up to center on irises marking the center of PRM and PR2
- Rotated the PSL polarization by 90deg (45deg on the lambda/2 stage) (required because of the REFL periscopes on HAM2)
- Installed irises for marking the IM transmitted beam, just after MC3 and before PRM
- Installed re-direction mirrors to redirect the IMC REFL into the path of IMC trans (alignment using the just installed irises)
- Joe is still aligning the last steering mirror in the IM4 transmitted path.
Comments related to this report
joseph.gleason@LIGO.ORG - 17:42, Monday 11 November 2013 (8470)
Update: I've positioned the final optic before the ISS PD and roughly aligned the beam to the ISS PD baffle. HAM 2 is now ready for the ISS PD installation.
H1 DAQ
david.barker@LIGO.ORG - posted 16:11, Monday 11 November 2013 (8467)
h1fw1 file system problem, caused multiple restarts

Just after lunch h1fw1 started going unstable. We also found that data retreival from h1nds1 was slower then h1nds0. Dan investigated the solaris QFS writer and found it unresponsive. He rebooted the Solaris machine (h1ldasgw1) and performed a file check on the QFS system. No problems were found and h1fw1 was restarted.

H1 CDS
david.barker@LIGO.ORG - posted 16:06, Monday 11 November 2013 (8466)
upgrading all models from matlab2010a to 2012b

We are in the process of upgrading all front end model mdl files from matlab 2010a to 2012b. To do this, we are opening the mdl files with 2012b, making a text change on the top level and then saving the file. The changes are to add the SVN tags $Id$ and $HeadURL$ as strings (or moving them/changing font size if they exist).

If the model is a common library part, it must be unlocked before it can be edited. This is done (after the model has been opened) by the matlab command line:

>> set_param('rtdemod','Lock','off')

where rtdemod is the mdl file name (leave out the .mdl part). You should see the padlock icon on the lower left disappear and you can make changes.

When you save, you have the option of asking matlab to save a 2010a version. Please do this, we can remove these files later when we have tested the system thoroughly with 2012b.

When you close the file the lock is reapplied.

H1 General
jeffrey.bartlett@LIGO.ORG - posted 16:05, Monday 11 November 2013 (8465)
Ops Summary
09:11 Mark & Jodi - Installing dust barrier in BSC3
09:50 Koji – OMC work in H2-PSL enclosure
10:38 Mark & Jodi - finished at BSC3
10:45 Justin - transition LVEA south bay to local laser hazard
11:03 Hugo – compiled and restarted the H1ISIITMX model
13:00 Koji – OMC work in H2-PSL enclosure
13:30 Cory - Going to End-Y TMS lab to recover tools/parts
15:10 Koji - OMC work in H2-PSL enclosure 
15:49 Dave – Recycled Framerwriter1  
H1 CDS
james.batch@LIGO.ORG - posted 15:57, Monday 11 November 2013 (8464)
Default Matlab version has been changed to R2012b
Since we are in the process of saving all models with Matlab R2012b, the models can no longer be edited with Matlab2010.  So, the default Matlab version has been moved to R2012b.  Note that copies of models that work with Matlab 2010 exist, so it's possible to return if needed.
H1 AOS (SEI)
jason.oberling@LIGO.ORG - posted 15:27, Monday 11 November 2013 - last comment - 16:16, Monday 11 November 2013(8463)
WBSC3 ITMx Alignment
IAS: J. Oberling
SEI: J. Warner
 
Corrected the small yaw shift induced by the HEPI actuator attachment.  All other positions and angles remain unchanged from alogs 8434 (pitch) and 8403 (x, y, z position); a small pitch adjustment is still necessary.
Comments related to this report
jim.warner@LIGO.ORG - 16:16, Monday 11 November 2013 (8468)INS, SEI

I took HEPI IPS trends, during the time frame of the HEPI move. They pretty well corroborate what Jason saw with his instruments, and with what I saw with our dial indicators (aside from one vertical DI that said we had a shift of some .006" which I probably bumped, as the IPS show no such move). Overall, IPS show little vertical shift (~400cts max, about .001") and the horizontal moves are all in the expected directions.

Images attached to this comment
H1 SEI (SEI, SUS)
hugo.paris@LIGO.ORG - posted 11:40, Monday 11 November 2013 (8460)
BSC-ITMX - SUS WD connected

SUS WD were connected to BSC-ITMX model.

Every other BSC-ISI model has it implemented already: ETMX,BS,ITMY,ETMY. ITMY is slightly different than the other chambers - Should be adjusted before next phase of testing.
 
The simulink blocks used to monitor the payload state are not associated with a library. They were thus copied from h1isietmx.mdl into h1isiitmx.mdl. h1isiitmx.mdl was also cleaned up a bit (adjusted lines so they look straight and organized).
 
The BSC-ITMX was recompiled and restarted. The payoad monitor display of BSC-ITMX overview screen was used to check that SUS trips SEI correctly:
- PAYLOAD_MON rectagle turned from white to red with the update.
- Block turns greed when ITMX Suspension user WD are untripped.
- Block turns back to red when ITMX Suspension user WD are tripped.
 
The new version of h1isiitmx.mdl was commited under the SVN as revision #6244.
 
Work was performed under WP# 4259 which is now closed.
 
Note: It would be useful to have the payload state bit, which is sent by SUS, to also account for the SUS user dackill state, SUS master switch, and SUS Damping loops status.
Images attached to this report
Non-image files attached to this report
H1 INS (INS)
jodi.fauver@LIGO.ORG - posted 10:46, Monday 11 November 2013 (8458)
Apollo work for 11 Nov 2013
The re-assembly of the Test Stand cleanroom was started at Y End and continued for most of the day. Mark Layne went into BSC3 to re-install the two ICC Dust Barriers (slots off-set and covered with taped on foil) between BSC2 and BSC3. This activity was completed by 10:45 am. After the cleaning crew completed their work this morning, Bubba and Mark L. worked on the BSC9 viewports. The two viewports on the door were attached (FC on both sides) but not torqued. There was some confusion associated with the illuminator and video camera viewports: the serial numbers on the documentation did not match up with the viewports on hand. Bubba consulted with Keita and then we unsuccessfully tried to track down (H2 PSL enclosure x 3 calls with no answer, VPW, desk) Joe D. to clarify the issue. If Keita can't find Joe in the PSL enclosure later today, we will talk to Joe in the morning.
H1 CDS
david.barker@LIGO.ORG - posted 09:47, Monday 11 November 2013 (8457)
Added new Safety CDS subsystem called SAF

Richard requested a new CDS subsystem for the safety controls system. It is called "saf", I have added it to the userapps SVN repo with the usual directory structure.

We should add SAF as a subsystem to the ALOG.

H1 AOS (IOO, PSL)
cheryl.vorvick@LIGO.ORG - posted 15:06, Sunday 10 November 2013 (8456)
IO Alignment, PMC recovery, and prep for PSL ISS Array

Friday was a busy day!

 

--- PSL ISS Cable Install - Jim, Mitchel

They got the cables installed in the flange with the worst access.

 

--- PSL PMC recovery - Filiberto, Stefan, Sheila

Replaced PMC electronics and brought the PMC back to stable locking.

 

--- IMC alignment - Peter, Justin, Cheryl

Input beam from the PSL was aligned to the IMC irises.  I aligned the IMC and it is flashing.

-----------------------------------

 

On Monday, there is still a fair amount of alignment to do in HAM2 before the PSL ISS can be installed.


1) IMC alignment check - check to see that the PSL beam is still well aligned, and flashing is good

2) Align through FI - requires aligning the beam to PR2 in HAM3

3) Reroute MC REFL as IMC TRANS

When these alignments have been completed, the PSL ISS Assembly can be installed in HAM2

-----------------------------------

 

IO install work to do latter in the week:


- remove, rework, and replace the PR2 scraper baffle

H1 TCS (AOS, TCS)
greg.grabeel@LIGO.ORG - posted 19:12, Friday 08 November 2013 - last comment - 10:54, Monday 11 November 2013(8452)
TCS install BSC 1,2,3
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.
Images attached to this report
Comments related to this report
greg.grabeel@LIGO.ORG - 10:54, Monday 11 November 2013 (8459)AOS, TCS
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.
H1 ISC (ISC, SUS)
sheila.dwyer@LIGO.ORG - posted 12:47, Sunday 03 November 2013 - last comment - 14:31, Monday 11 November 2013(8364)
Tip tilts for HAM 6 finsihed

Alexa, Keita, Stefan and Sheila-

We have the last optic mounted and balanced in a tip tilt (SN 33) for HAM 6 (OM3).  We had difficulty balancing this the optic in this tip tilt,  even with a short bolt, 2 nuts and a washer on the back side we could not balance it.  Keita brought out SN20 and 25 which are intended for India (and do not have cables attached).  We had a similar problem balancing one of these.  Keita then noticed that there is slop in the four scews that attach the piece that clamps the wire to the rest of the mirror holder (picture attached, these are the 2 bolts on top and the 2 bolts on the bottom of the photo.) The tip tilts we were able to balance had those screws centered in their holes while they were off center in the tip tilts we were unable to balance.  We centered them on the india tip tilt and then we were able to balance it using a dummy optic.  We then did the same thing on the TT that was originally intended to be the H1 spare (SN33).

In the process we used a dummy optic from iLIGO that has a scratch in the center to avoid chipping more real optics.  

We took parts from TT SN9:  the peak nudge  (which was missing from SN33), the small screw that tightens the balancing bolt (we dropped this) and one of the OSEM flags (one flag on SN33 was bent).  

In the end, we have not changed anything for the india tip tilts (SN 20 and 25) except correcting the position of the small bolts, we have 3 balanced and ready for HAM6 (SN2,4, and 33) and one H1 spare (SN9) which is missing parts and needs the wires reclamped.  

On monday I will double check all of the serial nubers written in this alog to make sure they are right.  

Images attached to this report
Comments related to this report
alexan.staley@LIGO.ORG - 14:31, Monday 11 November 2013 (8462)

As mentioned, last time we swapped the UL flag on SN 33 with the UL from SN 09 since the original one was slightly bent. I confirmed that the swapped flags have the same polarity, and is consistent with the previous polarity measurements done in this alog.

H2 SUS
jeffrey.garcia@LIGO.ORG - posted 00:22, Friday 30 March 2012 - last comment - 13:29, Monday 11 November 2013(2507)
H2 SUS ETMY impulse response measurements
The attached pdf contains plots of the accelerometer response from B&K impact hammer tests.  There were six locations on the ETMY sleeve structure selected for impacts.  Each plot displays the response in each degree of freedom (X,Y,Z) of the accelerometer.  The orientation of the accelerometer was such that the X direction is vertically up the structure, and the Y,Z directions in the horizontal plane of the optic.  Each measurement has five averages with 0.5Hz resolution.  

Data:
'~/sus/trunk/QUAD/H2/ETMY/Common/VA_Testing/2012_03_26_h2etmy_hammer_test/'

Plots: 
'~/2012_03_26_h2etmy_hammer_test/plots/'
Non-image files attached to this report
Comments related to this report
arnaud.pele@LIGO.ORG - 13:29, Monday 11 November 2013 (8461)

Locations are described as below (note from Jeff G left in folder containing original pulse files) :

location 1 : between test mass and tms. On tube side hitting cage corner towards roll up door

location 2 : on roll up door side hitting on corner of cage towards acceleromoter

location 3 : downwards on cross brace on test mass side in front of PUM

location 4 : upwards on cross brace on reaction side

location 5 : reaction mass, roll up door corner hitting inwards near the top

location 6 : cross brace on side of PUM by the roll up door

Displaying reports 68921-68940 of 77129.Go to page Start 3443 3444 3445 3446 3447 3448 3449 3450 3451 End