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Message ID: 1279     Entry time: Fri Feb 6 10:46:40 2009
Author: Kakeru 
Type: Update 
Category: PSL 
Subject: ISS servo and noise 
I measured the output noise of eache stage of ISS servo, and calcurated the noise ratio between input and 
output of each stage.
Generaly, each noise ratio corresponds to their transfar function. This means servo filter works well, not 
adding extra noise.

I attache example of them.
For 2nd stage, the noise ratio is smaller than transfar function with a few factor. This is because the 
input noise is coverd by analyser's noise and ratio between output and input looks small.
This means the input noise of 2nd stage was enough small and all stage before 2nd stage work well
Attachment 1: ISS_servo_TF_noise.png  24 kB  | Hide | Hide all
ISS_servo_TF_noise.png
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