Table 3.
Transducer thresholds for different coils.
| Coil Length (mm) | Mild Steel Bar (dB) | METGLASS 2705M (dB) |
|---|---|---|
| 19.3 | 2.07 | 3.21 |
| 92.7 | 1.76 | 3.25 |
| 178 | 0.98 | 2.92 |
| 280 | 0.91 | 3.19 |
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