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Structural Health Monitoring (SHM) is a damage-detection strategy based on in-place sensors. SHM is a technique used to evaluate the status of structures in real-time. It does this by collecting and analyzing data from sensors that are built into the structure.
These sensor networks operate by transmitting an active mechanical wave through the material. When this wave encounters a structural defect, a portion of the signal is reflected or perturbed. The transducer array receives this mechanical wave, allowing the system to accurately detect and locate the anomaly.
One Bar
This setup acts as a reference to verify that the principle of damage detection using piezoelectric sensors works correctly when the hardware is stable. The residual-signal technique is used to discriminate between healthy and damaged structural conditions.
Three Bars
An ADC-free analog damage detection system must be developed. This will be achieved by designing a custom electronic circuit, which will be connected to a PicoScope capture device that is linked to a PC running the analysis software. This dependency on the PicoScope can be eliminated by integrating a bicolor LED for a direct visual diagnosis of structural integrity (a low-cost option), as in the One Bar experimental platform.
Related Publications
Bachelor Thesis by Mathias Everaert
Study of a low-cost circuit for structural health monitoring (SHM) and fault detection
June 2026
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