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2.
Measurement Process Characterization
2.3. Calibration 2.3.4. Catalog of calibration designs 2.3.4.1. Mass weights
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Design 2,2,1,1,1
OBSERVATIONS 2 2 1 1 1
Y(1) + - - +
Y(2) + - - +
Y(3) + - + -
Y(4) + -
Y(5) + - -
Y(6) + - -
Y(7) + - -
Y(8) + - -
Y(9) + - -
Y(10) + - -
RESTRAINT + + +
CHECK STANDARD +
DEGREES OF FREEDOM = 6
SOLUTION MATRIX
DIVISOR = 275
OBSERVATIONS 2 2 1 1 1
Y(1) 47 -3 -44 66 11
Y(2) 25 -25 0 -55 55
Y(3) 3 -47 44 -11 -66
Y(4) 25 -25 0 0 0
Y(5) 29 4 -33 -33 22
Y(6) 29 4 -33 22 -33
Y(7) 7 -18 11 -44 -44
Y(8) 4 29 -33 -33 22
Y(9) 4 29 -33 22 -33
Y(10) -18 7 11 -44 -44
R* 110 110 55 55 55
R* = sum of three reference standards
FACTORS FOR REPEATABILITY STANDARD DEVIATIONS
WT FACTOR
2 2 1 1 1
2 0.2710 +
2 0.2710 +
1 0.3347 +
1 0.4382 +
1 0.4382 +
2 0.6066 + +
3 0.5367 + + +
1 0.4382 +
FACTORS FOR BETWEEN-DAY STANDARD DEVIATIONS
WT FACTOR
2 2 1 1 1
2 0.8246 +
2 0.8246 +
1 0.8485 +
1 1.0583 +
1 1.0583 +
2 1.5748 + +
3 1.6971 + + +
1 1.0583 +
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