Next Page Previous Page Home Tools & Aids Search Handbook
2. Measurement Process Characterization
2.3. Calibration
2.3.4. Catalog of calibration designs
2.3.4.1. Mass weights

2.3.4.1.6.

Design for 2,2,1,1,1

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                +

Explanation of notation and interpretation of tables

Home Tools & Aids Search Handbook Previous Page Next Page