40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
  40m Log  Not logged in ELOG logo
Entry  Mon Apr 19 05:54:50 2010, rana, Configuration, PSL, RC Temperature Servo Turned OFF temporarily Untitled.png
    Reply  Mon May 3 17:49:41 2010, rana, Configuration, PSL, RC Temperature Servo Turned OFF temporarily rct.png
       Reply  Tue May 4 02:28:38 2010, rana, Configuration, PSL, RC Temperature Servo Turned OFF temporarily 
          Reply  Tue May 4 06:32:58 2010, alberto, Configuration, PSL, RC Temperature Servo Turned OFF temporarily 
             Reply  Wed May 5 02:37:55 2010, rana, Configuration, PSL, RC Temperature Servo Turned OFF temporarily Picture_7.png
Message ID: 2805     Entry time: Mon Apr 19 05:54:50 2010     Reply to this: 2873
Author: rana 
Type: Configuration 
Category: PSL 
Subject: RC Temperature Servo Turned OFF temporarily 

In order to measure the transfer function of the RC cavity's foam, I've turned off the servo so that the room temperature noise can excite it.

The attached plot shows a step response test from 2 weeks ago. Servo is nominally still working fine.

Attachment 1: Untitled.png  11 kB  | Hide | Hide all
Untitled.png
ELOG V3.1.3-