Research Article
Optimization of Scanning Parameters in Coordinate Metrology Using Grey Relational Analysis and Fuzzy Logic
Table 9
Definition of input and output variables.
| Variable | Type of membership function | Levels | Interval |
| Input | Scanning time Range (90-500) | trimf | Low | < 180 | trapmf | Medium | 150-250 | trapmf | High | 225-350 | trimf | Very High | > 300 | RMS Range (10-40) | trimf | Low | < 18 | trapmf | Medium | 16-24 | trapmf | High | 22-28 | trimf | Very High | > 26 |
| Output | PI Range (0-1) | trimf | Worst | < 0.20 | trapmf | Very Low | 0.15-0.30 | trapmf | Low | 0.27-0.40 | trapmf | High | 0.38-0.48 | trapmf | Very High | 0.46-0.75 | trimf | Best | > 0.70 |
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