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Entry  Wed Aug 10 14:27:39 2011, Ishwita , Manuel, Update, PEM, Calibration of Guralp and STS2 
    Reply  Wed Aug 10 14:35:39 2011, rana, Update, PEM, Calibration of Guralp and STS2 
       Reply  Wed Aug 10 15:17:39 2011, Ishwita, Manuel, Update, PEM, Calibration of Guralp and STS2 
          Reply  Thu Aug 11 09:39:25 2011, Ishwita, Manuel, Update, PEM, Calibration of Guralp and STS2 pw_gurs_aug11.png
             Reply  Thu Aug 11 11:50:56 2011, Manuel , Ishwita, Update, PEM, Calibration of Guralp and STS2 
                Reply  Thu Aug 11 16:15:59 2011, Ishwita, Manuel, Update, PEM, Calibration of Guralp and STS2 
Message ID: 5172     Entry time: Wed Aug 10 14:27:39 2011     Reply to this: 5174
Author: Ishwita , Manuel 
Type: Update 
Category: PEM 
Subject: Calibration of Guralp and STS2 

ADC: 216counts = 4V Hence, calibration of ADC is 214counts/V.

Gain of the AA board, g1 = 0.1


GURALP

Sensitivity = 800 V/ms-1

214 counts/V x 800  V/ms-1 = 13107200 counts/ms-1 -----> 7.6294e-08 ms-1/count

Gain, g2 = 10

Calibration = 7.6294e-08 ms-1/count x g1 x g2 = 7.6294e-08 ms-1/count


 STS

Sensitivity = 1500 V/ms-1

214 counts/V x 1500  V/ms-1 = 24576000 counts/ms-1 -----> 4.069e-08 ms-1/count

Gain of the STS electronic breakout box, g3 = 10

Calibration = 4.069e-08 ms-1/count x g1 x g3 = 4.069e-08 ms-1/count

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