J
jckca
We have a piece of test equipment that tests up to 8 parts at a time using different test channels (we're testing a sensor) for product acceptance. There is a possibility one or more of the channels aren't equivalent due to temperature variation or something like that. I think I'd like to do a P / T Gage R&R on the equipment, but am not sure how to set it up appropriately- I'm also not completely sure a gage R&R is the right tool.
There should be no operator variability since the part is hooked up and then software zeroes the sensors before testing. My first thought was to do 3 trials with 2 parts in each of the 8 channels. Putting the parts as the operators. Tol = 10, -5 to 5 acceptable range. Another factor is that the tests take a long time. A practice run using half the channels gave us the following:
Operator A - B -
Sample # 1st Trial 2nd Trial 3rd Trial Range 1st Trial 2nd Trial 3rd Trial Range
1 0.7 0.2 0.6 0.5 0.8 0.6 0.7 0.2
2 0.3 -0.1 0.2 0.4 0.7 0.3 0.2 0.5
3 0.1 0.1 0.2 0.1 0.3 0 0.1 0.3
4 0.2 0.7 0 0.7 0.4 0.3 0.4 0.1
Does this approach sound reasonable?
There should be no operator variability since the part is hooked up and then software zeroes the sensors before testing. My first thought was to do 3 trials with 2 parts in each of the 8 channels. Putting the parts as the operators. Tol = 10, -5 to 5 acceptable range. Another factor is that the tests take a long time. A practice run using half the channels gave us the following:
Operator A - B -
Sample # 1st Trial 2nd Trial 3rd Trial Range 1st Trial 2nd Trial 3rd Trial Range
1 0.7 0.2 0.6 0.5 0.8 0.6 0.7 0.2
2 0.3 -0.1 0.2 0.4 0.7 0.3 0.2 0.5
3 0.1 0.1 0.2 0.1 0.3 0 0.1 0.3
4 0.2 0.7 0 0.7 0.4 0.3 0.4 0.1
Does this approach sound reasonable?