|
2.
Measurement Process Characterization
2.3. Calibration 2.3.4. Catalog of calibration designs 2.3.4.3. Designs for electrical quantities
|
|||
Design 1,1,1
CELLS
OBSERVATIONS 1 1 1
Y(1) + -
Y(2) + -
Y(3) + -
Y(4) - +
Y(5) - +
Y(6) - +
RESTRAINT + + +
DEGREES OF FREEDOM = 3
SOLUTION MATRIX
DIVISOR = 6
OBSERVATIONS 1 1 1 P
Y(1) 1 -1 0 1
Y(2) 1 0 -1 1
Y(3) 0 1 -1 1
Y(4) -1 1 0 1
Y(5) -1 0 1 1
Y(6) 0 -1 1 1
R* 2 2 2 0
R* = AVERAGE VALUE OF 3 REFERENCE CELLS
P = LEFT-RIGHT BIAS
FACTORS FOR COMPUTING STANDARD DEVIATIONS
V FACTOR CELLS
1 1 1
1 0.3333 +
1 0.3333 +
1 0.3333 +
| |||
| Explanation of notation and interpretation of tables | |||