Research Article
Parameter Recognition of Mode-Converted Wave in Single-Source Ultrasound Using Gabor Transform for Bolt Axial Stress Evaluation
Table 2
Recognized results of the simulation signals.
| Number | (MHz) | (MHz) | Average frequency error | (s) | (s) | Average TOF error |
| 1 | 4.082 | 2.939 | 2.04% | | | 0.17% | 2 | 4.495 | 3.507 | 0.15% | | | 0.76% | 3 | 5.012 | 3.978 | 0.37% | | | 0.22% | 4 | 5.498 | 4.487 | 0.24% | | | 0.32% | 5 | 5.991 | 5.012 | 0.19% | | | 0.35% | 6 | 6.504 | 5.612 | 0.89% | | | 0.38% | 7 | 6.993 | 6.124 | 1.00% | | | 0.36% | 8 | 7.522 | 6.514 | 0.25% | | | 0.20% |
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