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Entry  Fri Jul 17 02:46:07 2015, Ignacio, Update, General, New huddle test data for Wilcoxon 731A results 6x
    Reply  Tue Jul 21 05:17:09 2015, Ignacio, Update, General, More clear accelerometer huddle tests results new_data.pngnew_data.pngold_data_1.pngold_data_1.pngold_data_2.png
       Reply  Thu Jul 23 21:12:14 2015, Ignacio, Update, General, Newer accelerometer huddle test data + detrending old_data_1.pngold_data_2.pngnew_data.pngsix_old_data.png
          Reply  Tue Jul 28 09:31:35 2015, Ignacio, Update, General, Newest accelerometer huddle test selfnoise_allsix_miso_newest.png
Message ID: 11432     Entry time: Tue Jul 21 05:17:09 2015     In reply to: 11423     Reply to this: 11442
Author: Ignacio 
Type: Update 
Category: General 
Subject: More clear accelerometer huddle tests results 

I generated the following plots from the two sets of huddle test data we have for the accelerometers. 

Old data: 6 accelerometers, no cables clamped, no box, 55 mins worth of data.

New data: 3 accelerometers, cables clamped, foam box put on placed and completely sealed, 20 mins worth of data.

I made sure to use the same Impuse response time (6 sec) and sampling frequency (256 Hz), as well as every other parameter for the calculations.

  

 

Top left: The resultant self noise curve using the new data, there is definitely and improvement in the 0.5-2 Hz band. 

Top right: Resultant self noise using the old data, for the first set of three accelerometers.

Bottom left: Old data result for the remaining three accelerometers.

Bottom right: Old data result, using all six accelerometers as witnesses instead.

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