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Hello,
I'm looking for help for a special requierment from our customer.
We're forced to do a Gage R&R Analysis on our Automatic Test System.
We measure the output voltage of switching power supply with an electronic load.
The problem is now:
The output voltage of every unit is between 12.375 and 12.44V
But also the ripple (a kind of sinus wave) of ervery unit is about 62mV.
We do not use average measurment for several reasons.
So the measurment is a spot measure somewhere into the ripple.
No we found that the Gage R&R %StudVariation is about 30%.
This is clear to me cause the within-part variation from the part itself is already as the part-to-part variation. This is caused by the ripple.
I have not found many examples for such Gage R&R problems. Most Gage R&R analysis are made for fixed parts.
My part is changing it's behavior for every measurement (varies with about 62mV around its avarage voltage).
Is it possible to do the Gage RR anaylisis on such part?
How can I do and how can I write a rational for the ripple and therefore high %studyvariation?
Thank you in advance for your help
Best Regards
Uwe
I'm looking for help for a special requierment from our customer.
We're forced to do a Gage R&R Analysis on our Automatic Test System.
We measure the output voltage of switching power supply with an electronic load.
The problem is now:
The output voltage of every unit is between 12.375 and 12.44V
But also the ripple (a kind of sinus wave) of ervery unit is about 62mV.
We do not use average measurment for several reasons.
So the measurment is a spot measure somewhere into the ripple.
No we found that the Gage R&R %StudVariation is about 30%.
This is clear to me cause the within-part variation from the part itself is already as the part-to-part variation. This is caused by the ripple.
I have not found many examples for such Gage R&R problems. Most Gage R&R analysis are made for fixed parts.
My part is changing it's behavior for every measurement (varies with about 62mV around its avarage voltage).
Is it possible to do the Gage RR anaylisis on such part?
How can I do and how can I write a rational for the ripple and therefore high %studyvariation?
Thank you in advance for your help
Best Regards
Uwe