Research Article
Experimental Research on Quick Structural Health Monitoring Technique for Bridges Using Smartphone
Table 7
Comparison of natural frequency identified from angle measurements.
| | Location | 1 (left) | 2 (mid) | 3 (right) |
| | Natural frequency (Hz) | | | | | Accelerometer | 4.56 | 4.57 | 4.58 | | Smartphone (Orion-CC) | 4.68 | — | 4.59 | | Error (%) | 2.63 | — | 0.22 |
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