Research Article

Analysis and Realization of Sampling Strategy in Coordinate Metrology

Table 1

Linguistic variable and corresponding fuzzy numbers for inspection regions: (a) 90x90 mm2; (b) 45x45 mm2; and (c) 22.5x22.5 mm2.
(a)
 Variable Linguistic values Range Fuzzy numbers CA Very Low ≤ 0.001 (0.0001, 0.0003, 0.0006, 0.001) Low 0.0011 - 0.010 (0.0011, 0.00407, 0.00704, 0.01) Middle 0.011-0.025 (0.011, 0.0157, 0.0203, 0.025) High 0.0251-0.05 (0.0251, 0.0334, 0.0417, 0.05) Very High > 0.05 (0.051, 0.367, 0.683, 1) Measurement time Very Low ≤ 1 (0.1, 0.3, 0.7, 1) Low 1.1-8 (1.01, 3.33, 5.66, 8) Middle 8.1-15 (8.01, 10.4, 12.7, 15) High 15.1-30 (15.01, 20.07, 25.04, 30) Very High > 30 (30.01, 36.73, 43.36, 50)
(b)
 Variable Linguistic values Range Fuzzy numbers CA Very Low ≤ 0.001 (0.0001, 0.0003, 0.0006, 0.001) Low 0.0011 - 0.01 (0.0011, 0.00407, 0.00704, 0.01) Middle 0.011-0.015 (0.011, 0.0123, 0.0136, 0.015) High 0.0151-0.0200 (0.0151, 0.0167, 0.0184, 0.02) Very High > 0.020 (0.021, 0.347, 0.673, 1) Measurement time Very Low ≤ 1 (0.1, 0.3, 0.7, 1) Low 1.01-5 (1.01, 2.34, 3.67, 5) Middle 5.01-10 (5.01, 6.673, 8.336, 10) High 10.01-20 (10.01, 13.34, 16.67, 20) Very High > 20 (20.01, 30, 39.99, 50)
(c)
 Variable Linguistic values Range Fuzzy numbers CA Very Low ≤ 0.001 (0.0001, 0.0003, 0.0006, 0.001) Low 0.0011 - 0.0050 (0.0011, 0.0024, 0.0037, 0.005) Middle 0.0051-0.015 (0.0051, 0.0084, 0.0117, 0.015) High 0.0151-0.0200 (0.0151, 0.0167, 0.0184, 0.02) Very High > 0.020 (0.021, 0.347, 0.673, 1) Measurement time Very Low ≤ 1 (0.1, 0.3, 0.7, 1) Low 1.01-3 (1.01, 1.67, 2.33, 3) Middle 3.01-8 (3.01, 4.673, 6.336, 8) High 8.01-15 (8.01, 10.34, 12.67, 15) Very High > 15 (15.01, 26.673, 38.336, 50)

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