Work

Structural health detection sensor based on RFID technology

Year: 2025

Type: article

Abstract: In order to achieve structural health monitoring, a frequency-domain-based chipless radio-frequency identification sensor has been studied. The sensor is composed of an octagonal patch antenna and a Taconic CER-10 substrate, with overall dimensions of 24 × 24 × 1.27 mm3. Crack detection and strain detection simulations were conducted in the 3–6 and 6–12 GHz dual-frequency bands using HFSS. The results show that the sensor's resonant frequency decreases under tensile strain and increases under compressive strain. As the width, depth, and length of structural cracks increase, the sensor's resonant frequency shifts to lower frequencies. The designed structural health monitoring sensor can detect structural strain and damage with millimeter-level resolution through resonant frequency shifts. The sensor's maximum strain capacities under three different mechanical strains are −40% to 90%, −70% to 120%, and −40% to 90%, respectively. The sensor can detect changes in crack width, depth, and length without deformation, demonstrating a linear relationship between crack expansion and resonant frequency.

Source: APL Materials

DOI: 10.1063/5.0247756

Authors: Bo Wang, Yifeng Yuan, Ke Wang, Shengli Cao, Yalun Song, Male Feng

Institution: Xi’an University of Posts and Telecommunications

Language: English

Topic: Structural Health Monitoring Techniques

Subfield: Civil and Structural Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Industry, innovation and infrastructure

Open Access status: gold

Estimated APC paid: $2,200