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Message ID: 19     Entry time: Thu Jan 24 19:43:53 2008
Author: Stefan 
Type: Electronics 
Category: ISS 
Subject: ISS servo work 
- Modified ISS: Bypassed differential driver & moved 2kHz pole to the first summing opamp.
- Installed an out-of-loop diode.
- Out-of-loop noise at 90Hz: ~8e-8 RIN/rtHz

Plot 1 shows the OLG.
The loop gain was set to 150kHz - just because I
didn't have the gain adjust hooked up.

Plot 2 shows the out-of-loop intesnity noise.
It is acoustic noise limited (except for the power lines).
Attachment 1: ISSOLG.pdf  6 kB  Uploaded Fri Jan 25 17:05:19 2008  | Hide | Hide all
Attachment 2: ISSnoise.pdf  5 kB  Uploaded Fri Jan 25 17:08:38 2008  | Hide | Hide all
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