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Entry  Mon May 17 21:32:35 2010, Tara Chalermsongsak, Laser, Laser, PMC alignment 
    Reply  Tue May 18 15:21:12 2010, Tara Chalermsongsak, Laser, Laser, PMC alignment 
Message ID: 123     Entry time: Mon May 17 21:32:35 2010     Reply to this: 124
Author: Tara Chalermsongsak 
Type: Laser 
Category: Laser 
Subject: PMC alignment 

I'm trying to align the PMC.  The transducer is connected to the PMC servo card's HV out.

HV in is driven by a function generator with triangular function. The output signal looks weird. It is not a nice triangular form, it's more like a u shape waveform connecting to each others with a plateau on top.


I'll check if the transducer on the PMC and the HV out from the card are working correctly or not. Right now, there is not a glimpse of signal coming out of the PMC on CCD.

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