40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
  PSL  Not logged in ELOG logo
Message ID: 109     Entry time: Fri Apr 16 10:45:04 2010
Author: Tara Chalermsongsak 
Type: Electronics 
Category:  
Subject: Control Loop for PSL 

This is the control loop for the current PSL setup.

There are still components to be added.

1) TF of the PDH box, the one we have is a modified D0901351, so I measured the TF of this box when the integrator is off (April13,2010 entry.)

  This will be added in the model later. It is set to 1 for now.

2) TF of the photodiodes, I assume they are  Newfocus 1811 and choose the same value as used in linfss6.m.

3) I will verified the value of TF of the RefCav path (both Fast and PC paths are calculated from D980536) to see if they agree.

4) The TF of actuators will be added later.

 

Attachment 1: psl5_fig.png  116 kB  | Hide | Hide all
psl5_fig.png
Attachment 2: linpsl5.m  4 kB  | Hide | Hide all
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%	UPDATED APRIL 15, 2010, Tara Chalermsongsak
%    linearize the Simulink block diagram of	 the     %	
%	      FREQUENCY STABILIZATION SERVO       	 % 
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


% This gets the linearized model from the simulink model
% "psl5.mdl"
deg = 180/pi;
... 219 more lines ...
ELOG V3.1.3-