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Message ID: 2185     Entry time: Thu Nov 5 22:30:09 2009
Author: Alberto 
Type: Update 
Category: LSC 
Subject: X Arm Cavity Transfer Function 

It seems that just repeating the measurement was enough to get a good transfer function of the x arm cavity. Here's what I got.


I'm going to fit the data on matlab, but at first sight, the pole seems to be at about 1.7KHz (that is where the phase is 45deg): as expected.

Probably it was useful to realign the beam on the Transmission PD. (btw, I'm using the PDA255 that was still on the X end table since the AbsL experiemtn that measured the arm length)

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