Table 6 Measurement of wave velocity in defect-free flat steel of varying lengths.
From: Time frequency analysis of elastic wave PSO OMP for defects in flat steel of down conductors
NO | Length(m) | Cross-Corr Peak Fre(KHz) | Cross-Corr Delay Time(ms) | Celerity(m/s) |
|---|---|---|---|---|
1 | 1 | 9.17 | 0.1056 | 946.96 |
2 | 1.2 | 8.98 | 0.1232 | 811.69 |
3 | 1.4 | 9.11 | 0.1128 | 886.52 |
4 | 1.6 | 9.07 | 0.1048 | 954.20 |
5 | 2 | 9.15 | 0.1045 | 956.94 |
