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 5,5,2,2,1,1,1,1 OBSERVATIONS 5 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) + - Y(11) + - RESTRAINT + + CHECK STANDARD + DEGREES OF FREEDOM = 4 SOLUTION MATRIX DIVISOR = 120 OBSERVATIONS 5 5 2 2 1 1 1 1 Y(1) 30 -30 -12 -12 -22 -10 10 -2 Y(2) -30 30 -12 -12 -10 -22 -2 10 Y(3) 30 -30 -12 -12 10 -2 -22 -10 Y(4) -30 30 -12 -12 -2 10 -10 -22 Y(5) 0 0 6 6 -12 -12 -12 -12 Y(6) -30 30 33 -27 -36 24 -36 24 Y(7) 30 -30 33 -27 24 -36 24 -36 Y(8) 0 0 -27 33 -18 6 6 -18 Y(9) 0 0 -27 33 6 -18 -18 6 Y(10) 0 0 0 0 32 8 -32 -8 Y(11) 0 0 0 0 8 32 -8 -32 R* 60 60 24 24 12 12 12 12 R* = sum of the two reference standards FACTORS FOR COMPUTING REPEATABILITY STANDARD DEVIATIONS WT FACTOR 5 5 2 2 1 1 1 1 5 0.6124 + 5 0.6124 + 2 0.5431 + 2 0.5431 + 1 0.5370 + 1 0.5370 + 1 0.5370 + 1 0.5370 + 2 0.6733 + + 4 0.8879 + + + 6 0.8446 + + + + 11 1.0432 + + + + + 16 0.8446 + + + + + + 1 0.5370 + FACTORS FOR COMPUTING LEVEL-2 STANDARD DEVIATIONS WT FACTOR 5 5 2 2 1 1 1 1 5 0.7071 + 5 0.7071 + 2 1.0392 + 2 1.0392 + 1 1.0100 + 1 1.0100 + 1 1.0100 + 1 1.0100 + 2 1.4422 + + 4 1.8221 + + + 6 2.1726 + + + + 11 2.2847 + + + + + 16 2.1726 + + + + + + 1 1.0100 + |