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

14.0822.9392.04%0.17%
24.4953.5070.15%0.76%
35.0123.9780.37%0.22%
45.4984.4870.24%0.32%
55.9915.0120.19%0.35%
66.5045.6120.89%0.38%
76.9936.1241.00%0.36%
87.5226.5140.25%0.20%