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  Tue Nov 29 14:22:03 2011, Zach, Update, RF System, EOM temp stabilization performance Screen_shot_2011-11-29_at_1.33.50_PM.pngScreen_shot_2011-11-29_at_1.34.06_PM.pngScreen_shot_2011-11-29_at_1.41.03_PM.png
    Reply  Tue Nov 29 15:25:29 2011, steve, Update, RF System, EOM temp stabilization performance 2days.png
       Reply  Tue Nov 29 18:17:27 2011, Zach, Update, RF System, EOM temp stabilization performance 
    Reply  Tue Nov 29 22:10:18 2011, kiwamu, Update, RF System, RFAM fluctuation reduced RFAM_withEOMheater_edit.png
       Reply  Tue Nov 29 23:03:34 2011, Zach, Update, RF System, RFAM fluctuation reduced 
          Reply  Wed Nov 30 03:01:55 2011, kiwamu, Update, RF System, RFAM fluctuation reduced 
Message ID: 6047     Entry time: Tue Nov 29 23:03:34 2011     In reply to: 6044     Reply to this: 6050
Author: Zach 
Type: Update 
Category: RF System 
Subject: RFAM fluctuation reduced 

I was hesitant to claim that this is definitely true without the control data we were taking after the heater was turned off today. This is because before I replaced the malfunctioning op amp last night, the heater was actually ON and injecting temperature noise into the system that would not be there with it off. I think the best idea is to compare the data from today (heater on vs. heater off, but with functioning circuit).

Quote:

 

Indeed the fluctuation of the RFAM became quieter with the temperature control ON.

ELOG V3.1.3-