序 号 | 厚度 (mm) | 声速 (km/s) | 声时 (μs) | 频率 (kHz) | 幅值 (mv) | 序 号 | 厚度 (mm) | 声速 (km/s) | 声时 (μs) | 频率 (kHz) | 幅值 (mv) |
1 | 200 | 3.42 | 58.7 | 47.7 | 695.3 | 13 | 200 | 3.35 | 59.7 | 46.5 | 375.0 |
2 | 200 | 3.45 | 58.0 | 46.0 | 593.8 | 14 | 200 | 3.33 | 60.2 | 46.0 | 531.3 |
3 | 200 | 3.40 | 59.3 | 47.1 | 593.8 | 15 | 200 | 3.26 | 61.3 | 46.2 | 531.3 |
4 | 200 | 3.48 | 57.4 | 47.8 | 703.1 | 16 | 200 | 3.58 | 55.9 | 48.4 | 382.8 |
5 | 200 | 3.51 | 56.9 | 47.3 | 687.5 | 17 | 200 | 3.65 | 54.8 | 47.2 | 757.8 |
6 | 200 | 3.43 | 58.3 | 47.7 | 640.6 | 18 | 200 | 3.57 | 56.0 | 48.0 | 703.1 |
7 | 200 | 3.48 | 57.4 | 48.1 | 687.5 | 19 | 200 | 3.58 | 55.9 | 47.0 | 656.3 |
8 | 200 | 3.57 | 56.1 | 48.3 | 703.1 | 20 | 200 | 3.63 | 55.1 | 47.3 | 742.2 |
9 | 200 | 3.43 | 58.3 | 47.5 | 585.9 | 21 | 200 | 3.55 | 56.3 | 47.8 | 695.3 |
10 | 200 | 3.47 | 57.6 | 47.2 | 703.1 | 22 | 200 | 3.53 | 56.6 | 46.9 | 695.3 |
11 | 200 | 3.49 | 57.3 | 46.6 | 250.0 | 23 | 200 | 3.55 | 56.4 | 46.9 | 703.1 |
12 | 200 | 3.47 | 57.7 | 47.1 | 695.3 | 24 | 200 | 3.49 | 57.3 | 48.5 | 687.5 |