Research Article
Research on Pipeline Damage Imaging Technology Based on Ultrasonic Guided Waves
Table 7
Propagation distances between the reflection point and the signal receiving point.
| | Number | First signal time () | End echo signal time () | Damage signal time () | Calculated distance (mm) |
| | S1 | 109.10 | 1125.70 | 370.65 | 692.719 | | S2 | 109.80 | 1125.80 | 371.50 | 693.515 | | S3 | 109.20 | 1125.65 | 372.90 | 704.139 | | S4 | 109.00 | 1125.65 | 377.45 | 729.370 | | S5 | 109.25 | 1127.40 | 384.85 | 767.350 | | S6 | 109.10 | 1125.70 | 377.70 | 730.167 | | S7 | 109.20 | 1125.60 | 373.10 | 705.201 | | S8 | 109.25 | 1125.80 | 371.05 | 694.047 |
|
|
