Multi-Sensor Mobile Laser Doppler Vibrometry for Internal Damage Detection in Reinforced Concrete Structures
Shichuan Liang, Dejin Zhang · 2026
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Description
Shichuan Liang and Dejin Zhang present a way to find hidden damage inside reinforced concrete in this 2026 paper. Their tool is laser Doppler vibrometry, which reads tiny surface vibrations from a distance with a laser. Mounting the sensor on a moving platform would let crews scan large structures fast, but motion adds noise and signal shifts.
The authors first show that the shift caused by motion is tiny, so moving and fixed readings are much alike. A multi-sensor setup then removes platform shaking and speckle noise. A neural network trained on the cleaned signals spots voids of 0.4 meters and larger in tests. The work shows mobile scanning is workable for finding large hidden voids.
Catalog record
| CREATOR | Shichuan Liang, Dejin Zhang |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 39 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |