Difference between revisions of "Calibration process procedures"
(Created page with ''''Calibration''' The Wetlabs AC9 instrument is processed before every PnB cruise. During the calibration process, AC9 readings are recorded in Wetview from 'a' and 'c' channel…') |
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− | ''' | + | '''After calibration processing of calibration files''' |
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+ | <big>AC-9</big> | ||
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+ | As of October 2012, AC-9 calibrations have been reprocessed with new 'Si<sub>t</sub>' values from Wetlabs AC meter protocol document, rev.Q. The processing directory for AC9 calibrations is ''/pb/AC9/cals/ '' instrument number(184) ''/QWATER/'' year/date folder. | ||
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+ | Each time the instrument is sent back for a factory calibration, the new disc should be checked for updated temp and sal correction coefficients and calibration history should be updated in the ac9cal.txt inside of the ''/cals/0184/DeviceFiles/'' directory. Note that if coefficients have changed, goac9.par will need to be updated in the fallowing cruise processing. | ||
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+ | To process the calibration files, the device number _watertemp.txt file must be updated with the latest temperature value and .dat files must be present in the folder you wish to process in. ac9cal.m sources ac9cal_def.par in the ''AC9/cals/LIST'' folder. This should be updated when new 'Si<sub>t</sub>' are created. | ||
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+ | [[AC-9 specific instructions]] | ||
− | + | '''Directory update 6-25-2014''' | |
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− | + | Calibration directories have been updated | |
+ | AC9 example ==> /home/oceancolor/CALIBRATION/Wetlabs/AC-9/UCSB_Calibrations/AC-9_SN0184/2014/140109/ | ||
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+ | For above example, qcal.txt will need to look in /home/oceancolor/CALIBRATION/Wetlabs/AC-9/UCSB_Calibrations/AC-9_SN0184/2014/140109/X_Calproc/ | ||
− | + | To process the cals for PnB AC9 proc, make folder X_Calproc in same directory and copy/paste cal files to keep originals. | |
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'''Reviewing calibrations''' | '''Reviewing calibrations''' | ||
After processing, it is good to compare the latest calibration processed values with previous ones. For this, data from the _ave.txt files(which should be linked by you from the .txt files in the year/date folder) is added to the qcal_a_yy_yy.txt and qcal_c_yy_yy.txt files. ac9cal.m is restarted and the qcal file is now the *yy_yy.txt folder. Hit the last button ts_cal to view the whole time series. | After processing, it is good to compare the latest calibration processed values with previous ones. For this, data from the _ave.txt files(which should be linked by you from the .txt files in the year/date folder) is added to the qcal_a_yy_yy.txt and qcal_c_yy_yy.txt files. ac9cal.m is restarted and the qcal file is now the *yy_yy.txt folder. Hit the last button ts_cal to view the whole time series. | ||
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+ | [[File:achannel_cal_AC9.png]] | ||
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+ | [[File:cchannel_cal_AC9.png]] | ||
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+ | <big>HS-6</big> | ||
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+ | Visual inspection of Kexp values for the HS6 cal files is the current method of verifying calibration. | ||
+ | |||
back to [[Main Page]] | back to [[Main Page]] |
Latest revision as of 10:50, 31 May 2016
After calibration processing of calibration files
AC-9
As of October 2012, AC-9 calibrations have been reprocessed with new 'Sit' values from Wetlabs AC meter protocol document, rev.Q. The processing directory for AC9 calibrations is /pb/AC9/cals/ instrument number(184) /QWATER/ year/date folder.
Each time the instrument is sent back for a factory calibration, the new disc should be checked for updated temp and sal correction coefficients and calibration history should be updated in the ac9cal.txt inside of the /cals/0184/DeviceFiles/ directory. Note that if coefficients have changed, goac9.par will need to be updated in the fallowing cruise processing.
To process the calibration files, the device number _watertemp.txt file must be updated with the latest temperature value and .dat files must be present in the folder you wish to process in. ac9cal.m sources ac9cal_def.par in the AC9/cals/LIST folder. This should be updated when new 'Sit' are created.
Directory update 6-25-2014
Calibration directories have been updated AC9 example ==> /home/oceancolor/CALIBRATION/Wetlabs/AC-9/UCSB_Calibrations/AC-9_SN0184/2014/140109/
For above example, qcal.txt will need to look in /home/oceancolor/CALIBRATION/Wetlabs/AC-9/UCSB_Calibrations/AC-9_SN0184/2014/140109/X_Calproc/
To process the cals for PnB AC9 proc, make folder X_Calproc in same directory and copy/paste cal files to keep originals.
Reviewing calibrations
After processing, it is good to compare the latest calibration processed values with previous ones. For this, data from the _ave.txt files(which should be linked by you from the .txt files in the year/date folder) is added to the qcal_a_yy_yy.txt and qcal_c_yy_yy.txt files. ac9cal.m is restarted and the qcal file is now the *yy_yy.txt folder. Hit the last button ts_cal to view the whole time series.
HS-6
Visual inspection of Kexp values for the HS6 cal files is the current method of verifying calibration.
back to Main Page