2.
Measurement Process Characterization
2.3. Calibration 2.3.4. Catalog of calibration designs 2.3.4.1. Mass weights
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CASE 1: CHECK STANDARD = DIFFERENCE BETWEEN FIRST TWO WEIGHTS
OBSERVATIONS 1 1 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 = 10 OBSERVATIONS 1 1 1 1 1 Y(1) 2 -2 0 0 0 Y(2) 1 -1 -3 -1 -1 Y(3) 1 -1 -1 -3 -1 Y(4) 1 -1 -1 -1 -3 Y(5) -1 1 -3 -1 -1 Y(6) -1 1 -1 -3 -1 Y(7) -1 1 -1 -1 -3 Y(8) 0 0 2 -2 0 Y(9) 0 0 2 0 -2 Y(10) 0 0 0 2 -2 R* 5 5 5 5 5 R* = sum of two reference standards FACTORS FOR REPEATABILITY STANDARD DEVIATIONS WT FACTOR K1 1 1 1 1 1 1 0.3162 + 1 0.3162 + 1 0.5477 + 1 0.5477 + 1 0.5477 + 2 0.8944 + + 3 1.2247 + + + 0 0.6325 + - FACTORS FOR BETWEEN-DAY STANDARD DEVIATIONS WT FACTOR K2 1 1 1 1 1 1 0.7071 + 1 0.7071 + 1 1.2247 + 1 1.2247 + 1 1.2247 + 2 2.0000 + + 3 2.7386 + + + 0 1.4142 + - |
CASE 2: CHECK STANDARD = FOURTH WEIGHT
OBSERVATIONS 1 1 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 = 10 OBSERVATIONS 1 1 1 1 1 Y(1) 2 -2 0 0 0 Y(2) 1 -1 -3 -1 -1 Y(3) 1 -1 -1 -3 -1 Y(4) 1 -1 -1 -1 -3 Y(5) -1 1 -3 -1 -1 Y(6) -1 1 -1 -3 -1 Y(7) -1 1 -1 -1 -3 Y(8) 0 0 2 -2 0 Y(9) 0 0 2 0 -2 Y(10) 0 0 0 2 -2 R* 5 5 5 5 5 R* = sum of two reference standards FACTORS FOR REPEATABILITY STANDARD DEVIATIONS WT FACTOR K1 1 1 1 1 1 1 0.3162 + 1 0.3162 + 1 0.5477 + 1 0.5477 + 1 0.5477 + 2 0.8944 + + 3 1.2247 + + + 1 0.5477 + FACTORS FOR BETWEEN-DAY STANDARD DEVIATIONS WT FACTOR K2 1 1 1 1 1 1 0.7071 + 1 0.7071 + 1 1.2247 + 1 1.2247 + 1 1.2247 + 2 2.0000 + + 3 2.7386 + + + 1 1.2247 + |