测量系统分析 重复性 可再现性 PT PTV SIGMA MSA_GR&R

Total Tolerance

Location

Number of Trials

Measurement System Analysis : By Xbar/R method

1) %Tolerance

2) %Contribution & %Process Repeatability

Repeatability Source

StDev.

Var.

% Contribution % Process Enter the name of the parameter for comparison Standard Deviation

Total Gauge R&R

#DIV/0!#DIV/0!#DIV/0!#DIV/0!(Machine, etc.)

#DIV/0!

Repeatability

#DIV/0!#DIV/0!#DIV/0!#DIV/0!

Machine

Variance Reproducibility

0.000000.00000#DIV/0!0.00%

#DIV/0!

Part-to-Part #DIV/0!#DIV/0!#DIV/0!Historical Sigma

Total Variation

#DIV/0!

#DIV/0!#DIV/0!

0.03

Reproducibility

Reproducibility For Xbar/R method, there is no interaction.Standard Deviation 3) Number of Distinct Categories =

#DIV/0!

Variance component of Reproducibility is from;

0.000000

Operators

Variance

0.000000

Explanation of Total Variation

% of Total Measurement Error due to;% of Total Variation % of Spec Total Standard Deviation

Repeatability Machine #DIV/0!#DIV/0!(Gauge S.D.) #DIV/0!

Reproducibility

Operators #DIV/0!#DIV/0!Total #DIV/0!#DIV/0!

Total Variability Spread @ 99%

(Gauge S.D. * 5.16) #DIV/0!

Explanation of Repeatability

Repeatability StDev.% of Spec

Machine Repeat on Operators Input Name/ID of Opr."A"#VALUE!#VALUE!

Total % of Spec. contributed

%P/T Ratio Machine Repeat on Operators Input Name/ID of Opr."B"by Measurement Error

#DIV/0!Machine

Repeat on Operators

Input Name/ID of Opr."C"

#DIV/0!

Average #VALUE!#VALUE!

Summary (by Xbar/R)

- P/T Ratio or %Tolerance =#DIV/0!#DIV/0!- %Contribution

=#DIV/0!#DIV/0!- Number of Distinct Categories (NDC)

=

#DIV/0!

#DIV/0!

TL-FO-00168 Rev.02 10 Oct 03PER TL-WI-00084CONTROLLED

Machin e 0%Operat ors 0%

% of Total Variation

Specification

Total Tolerance

Location

Number of Trials

Measurement System Analysis : By ANOVA method

For an adequate measurement system, at least 50% of averages should fall outside control limits.

Charts Analysis: 1. R Chart by Opr

This chart illustrates the "Repeatability" of each operator. If there are too many points out of control, it might be implied as inadequate gage repeatability.

2. Xbar Chart by Opr

For this chart, the variation between parts is expected.

And all operators should obtain similar values for each part.

This chart is also used to determine if enough part-to-part variation has been observed to estimate Part Variation (SigmaParts & VarianceParts).

If too few of the averages fall outside the control limits, maybe the selected parts here are too similar. It is recommended to rerun analysis with different,more heterogeneous, parts.

3. By PartNo.

To use this chart in conjunction with chart #2.

4. By Opr

This chart illustrates the "Reproducibility" of the operators.

5. Opr*PartNo. Interaction

A significant Interaction means that operators tend to have difficulty to have similar measurements from identical parts

0.00000

0.100000.200000.300000.400000.500000.600000.700000.800000.900001.00000A1

A2

A3

A4

A5

A6

A7

A8

A9A10

B1

B2

B3

B4

B5

B6

B7

B8

B9B10

C1

C2

C3

C4

C5

C6

C7

C8

C9C10

Xbar Chart by Opr

For an adequate measurement system, at least 50% of averages should fall outside control limits.

A

B

C

0.00000

0.100000.200000.300000.400000.500000.600000.700000.800000.900001.00000A1

A2

A3

A4

A5

A6A7A8A9A10B1B2B3B4B5B6B7B8B9B10C1C2C3C4C5C6C7C8C9C10

R Chart by Opr

A

B

C

0.10.20.30.40.50.60.70.80.911

2

3

4

5

6

7

8

9

10

By PartNo.

0.00000

0.100000.200000.300000.400000.500000.600000.700000.800000.900001.00000OprA

OprB OprC

By Opr

0.00000

0.100000.200000.300000.400000.500000.600000.700000.800000.900001.000001

2

3

4

56

7

10

Opr*PartNo. Interaction

OprA

OprB

OprC