Minitab type 1 gage study
Measuring multiple parts, multiple times is different than measuring multiple parts once. Statistical Steven answer suggests something else. So how it is with reproducibility? I found info that to do reproducibility test a few operators (at least 2, better 3) need to measure one unit few times. If I shouldn't included it, then which data use ( error = ref. In TunnelData2.xlsx there are three columns with data, first column is a reference wind speed, second is my product's measurement data, when I try to do Gage type 1 in minitab I could only select target value (in this case 10.00 m/s), so how can I include also variation of my reference tool ? spread of 0.12 m/s ?).Īnd If my real measurement data looks in this way, so what can I do with them to do Gage R&R in correct way? But still my Cg, Cgk are below 1, and %Var is above 30%, which means that process is not under control.įor this product my spec limits are +-0.3 m/s, so tolerance is 0.6 m/s, target is 10.00 m/s, so to do gage R&R I need measurement data which cover only 20% of tolerance (in this case data with max. In Gage R&R type 1 I dont see any condition for NDC, can I use data which I used?Ĭlick to expand.I changed discrimination from 0.1 to 0.01 m/s, new data and graphs are in the attachments (there are real measurement data). Second – 30 measurements of the same unit.
In TunnelDAta.xlsx you could find measurement data in two columns: I have problem with my outputs (in the attachments you can see graphs from minitab) Can I add also 30 measurements of 30 different units (1 measurement per 1 unit) to get information about reproducibility? Type 1, because to start a calibration of our product (wind sensor) operator needs to press only a start button (so there are no variation between operators).įor a Gage R&R type 1 I want to use 1 unit and measure it 30 times, in this way I will have information about repeatibility. I have read a few articles about this topic so far, but still this is not clear for me.Please correct me if I am wrong. Gage R&R Type 1 to verify a measurement system Cp, cpk indices and I and MR charts to control company production, how far from spec limits we are, how close to mean, etc.Ģ.
#Minitab type 1 gage study how to
In my company (wind sensors manufactur) we try to introduce a set of tools to control our production and measurement system, problematic issue is the fact that no one knows how to do this correctly… my manager thinks about:ġ.