IPC-TM-650 EN 2022 试验方法.pdf - 第39页

Measurement Precision Study – Calculation Sheet Sample Data Sample 123456789 1 0 A verage Part A verage Part Average X= Max Part Avg X Max = Min Part Avg X Min = Range of Part Avgs R P = Condition Data Condition ABCD E F…

100%1 / 824
Measurement
Precision Study - Data Sheet (continued)
Condition
G Reading
Sample
Average12345678910
1
2
3
4
5
Average
X
G
=
Range
R
G
=
Condition
H Reading
Sample
Average12345678910
1
2
3
4
5
Average
X
H
=
Range
R
H
=
Condition
I Reading
Sample
Average12345678910
1
2
3
4
5
Average
X
I
=
Range
R
I
=
Condition
J Reading
Sample
Average12345678910
1
2
3
4
5
Average
X
J
=
Range
R
J
=
IPC-TM-650
Number
1.9
Subject
Measurement
Precision Estimation for Variables Data
Date
01/03
Revision
A
P
age8of10
电子技术应用　　　　　　　ｗｗｗ．ＣｈｉｎａＡＥＴ．ｃｏｍ
Measurement
Precision Study – Calculation Sheet
Sample Data
Sample 123456789
10
Average Part
Average
Part
Average
X=
Max Part Avg X
Max
=
Min Part Avg
X
Min
=
Range
of
Part Avgs
R
P
=
Condition
Data
Condition ABCD
EFGH I J
Average
Condition
Range
Average
Average
Range
R=
Max
Condition
Avg
X
Max
=
Min
Condition Avg
X
Min
=
Range
of
Condition Avgs
R
X
=
V
ariability Calculations
T
opic Equation Calculation Answer
Repeatability
S
r
= RxK
1
/
5.15 S
r
=
Reproducibility
S
R
=
√
(R
—
X
xK
2
)
2
−
(
28.1
x S
r
2
nxk
)
5.15
S
R
=
Total
R&r
S
R&r
=
√
S
r
2
+ S
R
2
S
R&r
=
Product
Variation S
P
=R
P
xK
3
/
5.15 S
P
=
Total
Variation
S
T
=
√
S
r
2
+ S
R
2
+ S
P
2
S
r
=
K
Factors
Readings
K1
2
4.565603
3 3.041937
4 2.501214
5 2.214101
6 2.03236
7 1.904586
8 1.808922
9 1.734007
10 1.673164
Parts
K3
2
3.652482
3 2.696335
4 2.299107
5 2.076613
6 1.928839
7 1.819788
8 1.739865
9 1.672078
10 1.619497
Operations
K2
2
3.652482
3 2.696335
4 2.299107
5 2.076613
6 1.928839
7 1.819788
8 1.739865
9 1.672078
10 1.619497
IPC-TM-650
Number
1.9
Subject
Measurement
Precision Estimation for Variables Data
Date
01/03
Revision
A
P
age9of10
电子技术应用　　　　　　　ｗｗｗ．ＣｈｉｎａＡＥＴ．ｃｏｍ
Comparisons
to Specifications (Used when both specifications exist)
T
opic Equation Calculation Answer
%
Repeatability
5.15 x S
r
USL − LSL
x
100
% Reproducibility
5.15 x S
R
USL − LSL
x
100
% Measurement R&r
5.15 x S
R&r
USL − LSL
x
100
Comparisons to Total Variation
T
opic Equation Calculation Answer
%
Repeatability
S
r
2
S
T
2
x
100
% Reproducibility
S
R
2
S
T
2
x
100
% Measurement R&r
S
Rxr
2
S
T
2
x
100
Measurement Tolerance
T
opic Equation Calculation Answer
Tolerance
+
–
2.57
x S
R&r
IPC-TM-650
Number
1.9
Subject
Measurement
Precision Estimation for Variables Data
Date
01/03
Revision
A
Page
10 of 10
电子技术应用　　　　　　　ｗｗｗ．ＣｈｉｎａＡＥＴ．ｃｏｍ