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Entry  Thu Aug 27 14:00:33 2009, rana, Update, PSL, RC thermal servo impulse response Untitled.png
    Reply  Mon Sep 7 20:05:18 2009, rana, Update, PSL, RCTEMP v. RMTEMP rct2.pngrct.png
    Reply  Mon Sep 7 23:35:03 2009, rana, Update, PSL, RC thermal servo: PID script modified, database + screen added Untitled.png
Message ID: 1957     Entry time: Thu Aug 27 14:00:33 2009     Reply to this: 1968   1970
Author: rana 
Type: Update 
Category: PSL 
Subject: RC thermal servo impulse response 

I stepped the TIDALSET and looked at what happened. Loop was closed with the very low gain.

The RED guy tells us the step/impulse response of the RC can to a step in the heater voltage.

The GREY SLOWDC tells us how much the actual glass spacer of the reference cavity lags the outside can temperature.

Since MINCOMEAS is our error signal, I have upped his SCAN period from 0.5 to 0.1 seconds in the database and reduced its SMOO from 0.9 to 0.0. I've also copied over the Fricke SLOW code and started making a perl PID loop for the reference cavity.

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