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 5,2,2,1,1,1,1 OBSERVATIONS 5 2 2 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 = 4 SOLUTION MATRIX DIVISOR = 60 OBSERVATIONS 5 2 2 1 1 1 1 Y(1) 12 0 0 -12 0 0 0 Y(2) 6 -4 -4 2 -12 3 3 Y(3) 6 -4 -4 2 3 -12 3 Y(4) 6 -4 -4 2 3 3 -12 Y(5) -6 28 -32 10 -6 -6 -6 Y(6) -6 -32 28 10 -6 -6 -6 Y(7) 6 8 8 -22 -6 -6 -6 Y(8) 0 0 0 0 15 -15 0 Y(9) 0 0 0 0 15 0 -15 Y(10) 0 0 0 0 0 15 -15 R* 30 12 12 6 6 6 6 R* = sum of the four reference standards FACTORS FOR REPEATABILITY STANDARD DEVIATIONS WT FACTOR 5 2 2 1 1 1 1 5 0.3162 + 2 0.7303 + 2 0.7303 + 1 0.4830 + 1 0.4472 + 1 0.4472 + 1 0.4472 + 2 0.5477 + + 3 0.5477 + + + 1 0.4472 + FACTORS FOR BETWEEN-DAY STANDARD DEVIATIONS WT FACTOR 5 2 2 1 1 1 1 5 1.0000 + 2 0.8718 + 2 0.8718 + 1 0.9165 + 1 1.0198 + 1 1.0198 + 1 1.0198 + 2 1.4697 + + 3 1.8330 + + + 1 1.0198 + |