GR&R on automated test system which produces hundreds of results

P

PAD01

#1
Hi - apologies if this is already on another thread.
Have been asked to perform GR&R on a test system that produces many hundreds of lines of results.
Interfacing to the unit under test is via connectors - so no mechanical set up is required.

The results are split between absolute, attribute and continuous

The appraiser has very little influence on the results - once started the the system runs automatically, the appraiser's only input is to confirm display patterns are produced on various monitors (i.e. is the display as per the test pattern (Y/N)?)

The majority of the remaining results are absolute - i.e. the system expects a specific value to be returned (i.e. hex / binary data) - test system automatically runs the test and captures the result - no appraiser involvement.

A minority of tests are continuous (voltage / current / time delay) - again the system captures the results with no appraiser involvement.
Are there any recommendations as to best method of GR&R?

Appreciate that 'ANOVA GR&R' (continous) and 'Attribute Agreement GR&R' (attribute / absolute?) can be performed - but with the appraiser having little influence what can be gained?

Thanks in advance for any feedback.

Paul
 
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Marc

Hunkered Down for the Duration with a Mask on...
Staff member
Admin
#3
Another quick "Bump". My Thanks in advance to anyone who can help with this one.
 
R

rsimano

#5
Appreciate that 'ANOVA GR&R' (continous) and 'Attribute Agreement GR&R' (attribute / absolute?) can be performed - but with the appraiser having little influence what can be gained?
Paul
Hi Paul,

Does the appraiser still determine accept/reject based off data supplied by the system or does the system determine accept/reject?

-If the appraiser is still determining accept/reject based off data supplied by the system then they still may have a significant influence on the system. Different appraisers may interpret the data differently or misread the data supplied.

-If the system is taking over the task of measuring and determining for the appraiser and the appraiser has little/no influence. :2cents:. Should the GR&R not be done against the system as if it were the operator to determine the systems repeatability?
 
Last edited by a moderator:

Miner

Forum Moderator
Staff member
Admin
#6
On the continuous data, consider performing a Repeatability only study making sure that you disconnect and reconnect between repeat measurements.

If you have multiple versions of this test equipment, consider using these in place of the operator for test equipment to test equipment Reproducibility.
 
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