40m QIL Cryo_Lab CTN SUS_Lab CAML OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
  PSL  Not logged in ELOG logo
 List  |  Find  |  Login  |  Help 
Entry  Tue Jun 29 23:56:38 2010, tarac, Notes, PMC, PMC servo debugging 
    Reply  Wed Jun 30 00:37:49 2010, rana, HowTo, Computers, PMC servo debugging 
       Reply  Wed Jun 30 00:59:13 2010, Frank, HowTo, Computers, PMC servo debugging 
Message ID: 188     Entry time: Wed Jun 30 00:37:49 2010     In reply to: 187     Reply to this: 189
Author: rana 
Type: HowTo 
Category: Computers 
Subject: PMC servo debugging 

Quote:

 I was going to check the TF on each stage of PMC's servo.

Unfortunately, I couldn't find the floppy disc drive, so I slide the sliders (gain, RF power) around. When I add more RF power (from 1V to 7V) to 21.5 MHz EOM, the oscilaltion subsides*.

 How sad. Stop using the floppies and get one of the GPIB-Ethernet converters from Dmass. You can download the python scripts from the 40m wiki.

ELOG V3.1.3-