|
40m
QIL
Cryo_Lab
CTN
SUS_Lab
TCS_Lab
OMC_Lab
CRIME_Lab
FEA
ENG_Labs
OptContFac
Mariner
WBEEShop
|
| 40m Log |
Not logged in |
 |
|
|
 Sat Sep 22 01:03:30 2012, Den, Update, PEM, ETMY table 
|
 Mon Sep 24 17:03:39 2012, Jenne, Update, PEM, 1X1 rack power
| |
Fri Oct 12 22:44:49 2012, Den, Update, PEM, ETMY table 6x
| |
Sun Oct 14 11:41:42 2012, Den, Update, PEM, ETMY table
| |
Thu Dec 13 01:49:53 2012, rana, Update, PEM, seismometers
| |
Thu Dec 13 21:21:34 2012, Den, Update, PEM, seismometers
|
|
|
Message ID: 7539
Entry time: Fri Oct 12 22:44:49 2012
In reply to: 7429
Reply to this: 7540
|
| Author: |
Den |
| Type: |
Update |
| Category: |
PEM |
| Subject: |
ETMY table |
|
|
| Quote: |
|
Seismic noise on the ETMY table measured to be a few times higher then on the floor in horizontal direction in the frequency range 50 - 200 Hz. Attached are compared spectrums of X, Y and Z motions.
|
Accelerometers were installed on the ETMY table and nearby ground to measure amplification of the seismic noise due to the table. During this experiment ground and table motions were measured simultaneously.
 
|
|
|
|
|
|
|
|
|