|
40m
QIL
Cryo_Lab
CTN
SUS_Lab
TCS_Lab
OMC_Lab
CRIME_Lab
FEA
ENG_Labs
OptContFac
Mariner
WBEEShop
|
| 40m Log |
Not logged in |
 |
|
|
 Thu Jan 4 12:46:27 2018, gautam, Update, ALS, Fiber ALS assay 
|
 Thu Jan 11 14:22:40 2018, gautam, Update, ALS, Fiber ALS assay
| |
Thu Jan 11 20:51:20 2018, gautam, Update, ALS, Fiber ALS assay
| |
Tue Jan 16 21:50:53 2018, gautam, Update, ALS, Fiber ALS assay
| |
Thu Jan 18 00:35:00 2018, gautam, Update, ALS, Fiber ALS assay
| |
Fri Jan 19 11:34:21 2018, gautam, Update, ALS, Fiber ALS assay
| |
Fri Jan 19 23:04:11 2018, gautam, Update, ALS, Fiber ALS assay
| |
Wed Jan 24 00:33:31 2018, gautam, Update, ALS, Fiber ALS assay
| |
Wed Jan 24 10:45:14 2018, gautam, Update, ALS, Fiber ALS assay
| |
Thu Jan 25 23:59:14 2018, gautam, Update, ALS, Fiber ALS assay
| |
Fri Jan 26 20:03:09 2018, gautam, Update, ALS, Fiber ALS assay
| |
Wed Jan 31 15:45:22 2018, gautam, Update, ALS, Fiber ALS assay
| |
Wed Jan 31 16:29:42 2018, gautam, Update, ALS, Modulation depths
| |
Wed Jan 31 16:33:53 2018, gautam, Update, ALS, ALS electronics at LSC rack
| |
Wed Jan 31 22:32:11 2018, gautam, Update, ALS, ALS signal chain + power budget
| |
Thu Feb 1 01:24:56 2018, gautam, Update, ALS, D0902745 revamp underway
| |
Fri Feb 2 00:26:34 2018, gautam, Update, ALS, D0902745 revamp underway
| |
Fri Feb 2 13:16:55 2018, gautam, Update, ALS, ALS signals whitening switching
| |
Mon Feb 5 14:11:01 2018, gautam, Update, ALS, Huge harmonics in ALS channels
| |
Mon Feb 5 22:57:28 2018, gautam, Update, ALS, Huge harmonics in ALS channels
| |
Tue Feb 6 11:13:26 2018, gautam, Update, ALS, Possible source of ground loop identified
| |
Tue Feb 6 22:55:51 2018, gautam, Update, ALS, Possible source of ground loop identified
| |
Thu Feb 8 00:33:20 2018, gautam, Update, ALS, D990694 characterization / THD measurement plan
| |
Thu Feb 8 01:27:16 2018, Koji, Update, ALS, D990694 characterization / THD measurement plan
| |
Fri Feb 9 13:37:44 2018, gautam, Update, ALS, THD measurement trial
| |
Thu Feb 8 12:00:09 2018, gautam, Update, ALS, D990694 is NOT differential receiving
| |
Thu Feb 8 13:13:14 2018, gautam, Update, ALS, D990694 pulled out
| |
Thu Feb 8 18:10:36 2018, gautam, Update, ALS, D990694 pulled out
| |
Wed Feb 7 15:51:15 2018, gautam, Update, ALS, D0902745 revamp complete
| |
Fri Feb 16 01:34:40 2018, gautam, Update, ALS, D0902745 in-situ testing
| |
Tue Feb 20 23:08:27 2018, gautam, Update, ALS, D0902745 in-situ testing
| |
Thu Feb 22 00:09:11 2018, gautam, Update, ALS, D0902745 in-situ testing
| |
Sun Feb 25 00:03:12 2018, gautam, Update, ALS, Daughter board prototyping
| |
Mon Feb 26 20:55:56 2018, rana, Update, ALS, Daughter board prototyping
| |
Tue Feb 27 21:10:45 2018, gautam, Update, ALS, Daughter board testing
| |
Wed Feb 28 19:13:25 2018, gautam, Update, ALS, ADC test for differential receiving in c1lsc
| |
Fri Mar 2 01:45:06 2018, gautam, Update, ALS, new look ALS electronics
| |
Mon Mar 5 17:27:34 2018, gautam, Update, ALS, new look ALS electronics - characterization
| |
Thu Mar 8 00:40:25 2018, gautam, Update, ALS, new look ALS electronics - characterization
| |
Thu Mar 8 19:38:37 2018, gautam, Update, ALS, digital unwhitening of daughter board
| |
Thu Mar 8 23:50:27 2018, gautam, Update, ALS, First look at new ALS electronics
| |
Fri Mar 9 01:07:01 2018, gautam, Update, ALS, First look at new ALS electronics
| |
Mon Mar 12 22:08:31 2018, gautam, Update, ALS, Noisy POX
| |
Mon Mar 12 23:57:31 2018, gautam, Update, ALS, Noisy POX
| |
Mon Mar 19 15:02:29 2018, gautam, Update, ALS, Noisy MC sensing
| |
Thu Feb 1 15:31:12 2018, gautam, Update, ALS, ALS signal chain + power budget
| |
Wed Feb 7 10:16:26 2018, gautam, Update, ALS, ALS signal chain + power budget
| |
Thu Jan 25 13:18:41 2018, gautam, Update, ALS, Fiber ALS assay
|
|
|
Message ID: 13534
Entry time: Thu Jan 11 20:51:20 2018
In reply to: 13531
Reply to this: 13552
|
| Author: |
gautam |
| Type: |
Update |
| Category: |
ALS |
| Subject: |
Fiber ALS assay |
|
|
After labeling cables I would disconnect, I pulled the box out of the LSC rack. Attachment #1 is a picture of the insides of the box - looks like it is indeed just two lengths of cabling. There was also some foam haphazardly stuck around inside - presumably an attempt at insulation/isolation.
Since I have the box out, I plan to measure the delay in each path, and also the signal attenuation. I'll also try and neaten the foam padding arrangement - Steve was showing me some foam we have, I'll use that. If anyone has comments on other changes that should be made / additional tests that should be done, please let me know.
20180111_2200: I'm running some TF measurements on the delay line box with the Agilent in the control room area (script running in tmux sesh on pianosa). Results will be uploaded later.
| Quote: |
|
For completeness, I'd like to temporarily pull the box out of the rack, open it up, take photos, and make a diagram unless there are any objections.
|
|
|
|