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Update docu about calibration

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Mario Hüttel 2021-05-22 17:52:55 +02:00
parent 9558d4bb45
commit 632973cdac
2 changed files with 7 additions and 18 deletions
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1
doc/source/firmware/calibration.drawio Normal file
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@ -0,0 +1 @@
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24
doc/source/firmware/pt1000-processing.rst
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@ -120,19 +120,7 @@ are used to set the resistance calibration internally. For a guide on how to cal
The calibration is calculated the following way: The calibration is calculated the following way:
.. blockdiag:: .. drawio-image:: calibration.drawio
:desctable:
blockdiag {
orientation = portrait;
LF [label="LF", shape=beginpoint, description="Low Frequency PT1000 Value"];
SENS [label="Sens", description="Sensitivity Correction :math:`\sigma`"];
OFFSET [label="Offset", description="Offset Correction :math:`O`"];
OUT [shape=endpoint, description="Corrected Value"];
LF -> OFFSET -> SENS -> OUT
}
The final calibrated PT1000 resistance is calculated as: The final calibrated PT1000 resistance is calculated as:
@ -141,11 +129,11 @@ The final calibrated PT1000 resistance is calculated as:
The default values, if no calibration is loaded / executed, are: The default values, if no calibration is loaded / executed, are:
============== ========= ======== =====================
:math:`\sigma` :math:`O` Offset Sensitivity Deviation
============== ========= ======== =====================
0 0 0 0
============== ========= ======== =====================
Get Calibration Corrected Value Get Calibration Corrected Value
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~