Channel Calibration tool to
calibrate hardware channels by adjusting the values they
return to known values while a system definition
Before you begin, verify that you have the tool in your
menu. If you do not, refer to Adding a Standard or
Custom Tools Menu Item
You can calibrate channels according to
polynomial equations you define, custom-defined channels marked as scalable,
as well as FPGA and single-point DAQ channels in running system
a channel has a scale mapped to it, VeriStand applies the scale
first and applies the calibration to the scaled channel values
VeriStand supports polynomial calibrations with up
to ten coefficients. A simple polynomial calibration is a linear
calibration, y = mx + b, where m is the
first-order coefficient (a1) that serves as the scale and b is the
constant (a0) that serves as an offset.
In the Workspace, select to launch the tool.
name of this menu item might differ depending on how
you named it in the Tools
Properties dialog box.
In the Channel Calibration tool under
Scalable Channels, select a
channel you want to calibrate.
On the User Information page, enter
metadata about the specific calibration procedure you want
information is used to store the history of
calibrations performed for a channel. You can view
the information by clicking View
History on the main page of the
Channel Calibration tool.
On the Polynomial Calibration Details
page, enter coefficients to define the polynomial equation
that will calibrate the channel.
click Build Table and then
complete a procedure for automatically calculating
polynomial coefficients that best fit raw sensor
values to known input values.
The Scaled and Calibrated Value
column in the Scalable Channels
table displays channel
values after the calibration.
When you close the Channel
Calibration tool, the calibration remains
applied to the channel. Even if you close the
Workspace or undeploy and redeploy the
system definition, the calibration remains active until you remove
You also can use the Calibration VIs in the LabVIEW
Execution API to automate applying calibrations and reading raw values from