40m
QIL
Cryo_Lab
CTN
SUS_Lab
TCS_Lab
OMC_Lab
CRIME_Lab
FEA
ENG_Labs
OptContFac
Mariner
WBEEShop
|
40m Log |
Not logged in |
 |
|
Fri Sep 21 09:59:09 2018, yuki, Configuration, ASC, Y end table upgrade plan    
|
Sun Sep 23 19:32:23 2018, yuki, Configuration, ASC, Y end table upgrade plan    
|
Mon Sep 24 11:09:05 2018, yuki, Configuration, ASC, Y end table upgrade plan
|
Tue Sep 25 18:08:50 2018, yuki, Configuration, ASC, Y end table upgrade plan
|
Thu Sep 27 14:02:55 2018, yuki, Configuration, ASC, PZT driver board verification    
|
Sun Sep 30 20:14:51 2018, yuki, Configuration, ASC, QPD calibration 
|
Mon Oct 1 12:03:41 2018, not yuki, Configuration, ASC, PZT driver board verification
|
Mon Oct 1 13:33:55 2018, yuki, Configuration, ASC, QPD calibration
|
Tue Oct 2 18:50:53 2018, yuki, Configuration, ASC, PZT mirror calibration   
|
Wed Oct 3 18:15:34 2018, yuki, Configuration, ASC, AI board improvement
|
Thu Oct 4 00:44:50 2018, yuki, Configuration, ASC, AI board improvement
|
Thu Oct 4 22:15:30 2018, yuki, Configuration, ASC, Y-end table upgrade  
|
Fri Oct 5 00:46:17 2018, Koji, Configuration, ASC, Y-end table upgrade
|
Fri Oct 5 17:32:38 2018, yuki, Configuration, ASC, Y-end table upgrade
|
Mon Oct 8 00:46:35 2018, yuki, Configuration, ASC, Y-end table upgrade
|
Fri Oct 5 17:47:55 2018, gautam, Configuration, ASC, Y-end table upgrade
|
Fri Oct 5 22:49:22 2018, yuki, Configuration, ASC, Y-end table upgrade
|
Sun Oct 7 16:51:03 2018, gautam, Configuration, LSC, Yarm triggering changed
|
Sun Oct 7 22:30:42 2018, yuki, Configuration, LSC, Yarm Green locking was recovered 
|
Tue Oct 9 23:03:43 2018, yuki, Configuration, LSC, Yarm Green locking was recovered 
|
Wed Oct 10 12:38:27 2018, yuki, Configuration, LSC, All hardware was installed
|
Mon Oct 1 20:39:09 2018, gautam, Configuration, ASC, c1asy
|
Mon Oct 8 18:56:52 2018, gautam, Configuration, ASC, c1asx filter coefficient file missing
|
Tue Oct 9 16:05:29 2018, gautam, Configuration, ASC, c1tst deleted, c1asy deployed.
|
Wed Oct 3 14:24:40 2018, yuki, Configuration, ASC, Y end table upgrade plan
|
Mon Oct 15 20:11:56 2018, yuki, Configuration, ASC, Y end table upgrade plan
|
Wed Oct 17 20:46:24 2018, yuki, Configuration, ASC, Y end table upgrade plan
|
|
Message ID: 14227
Entry time: Wed Oct 3 18:15:34 2018
In reply to: 14224
Reply to this: 14228
|
Author: |
yuki |
Type: |
Configuration |
Category: |
ASC |
Subject: |
AI board improvement |
|
|
[ Yuki, Gautam ]
I improved Anti-Imaging board (D000186-Rev.D), which will be put between DAC port and PZT driver board.
It had notches at f = 16.6 kHz and 32.7 kHz, you can see them in the plot attached. So I replaced some resistors as follows:
- R6 and R7 replaced with 511 ohm (1206 thin film resistor)
- R8 replaced with 255 ohm (1206 thin film resistor)
- R14 and R15 replaced with 549 ohm (1206 thin film resistor)
- R16 replaced with 274 ohm (1206 thin film resistor)
Then the notch moved to 65.9 kHz (> sampling frequency of DAC = 64 kHz, good!).
(The plot enlarged around the notch frequency and the plot of all channels will be posted later.)
All electronics and optics seem to be ready.
Reference, elog:40m/8857
Diagram, D000186-D.pdf |
|