Table 1 Comparison of instrument parameters and the elastic wave velocities of the sandstone samples at the natural state measured using SYC-II and RSM-SY5
SYC-II | RSM-SY5 | |
|---|---|---|
Frequency range | 10–50 kHz | 15–100 kHz |
Sampling interval | 1 μs–10 ms | 0.1 μs–200 μs |
Sampling accuracy | ± 0.1 μs | ± 0.1 μs |
Reading method | Vernier method | Vernier method |
Measurement of the wave velocity of the sandstone samples at the natural state (n = 6) (m s−1) | 4463 ± 108 | 4429 ± 79 |