Basic Calibration Terms

Jan 07, 2008 3 Replies

Hi,



I have a program which I use to conduct tests. One of these tests requires that I calibrate the voltage supply at the following points



0, 5, 12, 15, and 22 Volts. These points mark boundaries above which certain functionality must be available. The problem is that the voltage I output from my dac does not result in the exact corresponding voltage from the voltage supply. Therefore to get these values I need to output the following voltages from the dac - 0.2,
5.2, 12.2, 15.3, 25.

I have writen a gui to allow the user to adjust these values, but I'm not sure what terms I should use to explain this gui. For example, I have the value 15 volts (desired value), 15.3 volts (the actual value my program requests the supply to set itself to via the dac), and finally the actually value from the supply.



/Barry


I think "Target Value" and Measured Value" might be understandable.

Regards, John Popelish

Perhaps add an "Offset" term too (Target - Measured)? It could even be color coded to indicate the degree of offset. Unless *any* offset has to be compensated for.

John

Maybe you should do some hardware work to make the DAC output create to proper voltages.

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