Quality Management 2017
Collection of the data and verification of the capability of the measurement system
M EASURE
V ERIFICATION OF THE MEASUREMENT SYSTEM
• Let’s suppose the measuring tapes have been calibrated the measurement capability indicator (Cpc) must be very high (> 4)
Cpc > 4
Opérateur 1
Opérateur 2
N°
1ère mesure 2ème mesure
faisceau 1ère mesure 2ème mesure
R
R
X
X
1
-0,59% -0,39% -0,49%
0,20% -0,76% -0,44% -0,60% 0,32%
2 -0,21% -0,13% -0,17% 0,08% -0,44% -0,34% -0,39% 0,10% 3 -0,17% -0,19% -0,18% 0,02% -0,70% -0,47% -0,59% 0,23% 4 -1,19% -1,09% -1,14% 0,10% -1,19% -0,99% -1,09% 0,20% 5 -0,24% -0,40% -0,32% 0,16% -0,36% -0,59% -0,48% 0,22% 6 0,17% 0,20% 0,19% 0,03% -0,03% -0,26% -0,14% 0,23% 7 -0,67% -0,77% -0,72% 0,10% -0,85% -0,81% -0,83% 0,04% 8 -0,91% -0,66% -0,78% 0,24% -1,09% -1,07% -1,08% 0,02% 9 -1,35% -1,25% -1,30% 0,10% -1,39% -1,43% -1,41% 0,04% 10 -0,44% -0,24% -0,34% 0,21% -0,75% -0,71% -0,73% 0,04%
-0,52% 0,12%
-0,73% 0,14%
R 2
X 2
X 1
R 1
We can use the results of the measuring tape to perform a SPC analysis.
Moyenne de et = -0,63% X 1 X 2
= Moyenne de et = 0,13% R 1 R 2
R
03/10/17
11
2
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