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Entry  Thu Jul 31 11:54:54 2014, Akhil, Summary, Electronics, PZT Calibration PZT_Y_Calibration.pdfPZT_X_Calibration.pdf
    Reply  Thu Jul 31 12:23:38 2014, Koji, Summary, Electronics, PZT Calibration 
       Reply  Thu Jul 31 14:23:28 2014, Akhil, Summary, Electronics, PZT Calibration PZT_Y_Calibration.pdf
          Reply  Fri Aug 1 18:48:46 2014, Akhil, Summary, Electronics, PZT Calibration 
Message ID: 10307     Entry time: Thu Jul 31 14:23:28 2014     In reply to: 10306     Reply to this: 10324
Author: Akhil 
Type: Summary 
Category: Electronics 
Subject: PZT Calibration 

 

 The PZT seems to saturate at around +/- 3500 counts. So for the Y arm, I excluded the saturated points and fitted the data points again.

As for the calibration number, we expect the 3276.8 count/V for +/- 10 V range of a 16 bit ADC but the number is ~800 count/V. I couldn't figure out a reason why the number is so different.

The new calibration values are :

X- arm PZT : [146.3 +/- 2.37 ]  counts/Volt   (with a 20 dB attenuator included in the path)

Y- arm PZT :  [ 797 +/- 3.6]    counts/Volt  

I will get the calibration in MHz/V of PZT actuation and check whether these numbers make any sense.

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PZT_Y_Calibration.pdf
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