Investigation of Long-Term Embedded RFID Sensors for Structural Health Monitoring

Ensuring the health of civil engineering structures is crucial for the safety and longevity of the built environment. In this direction, structural health monitoring (SHM) has been increasingly employed, providing insight into the structural behavior, based on sensor data representing structural res...

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Bibliographic Details
Main Authors: Johann, S., Kohlhoff, H., Schlischka, J., Strangfeld, C., Bartholmai, M., Smarsly, K.
Format: Conference Proceeding
Language:English
Subjects:
3D-printing
Civil engineering
Concrete
embedded sensor
Monitoring
Passive RFID tags
Power supplies
Radiofrequency identification
RFID
Safety
Sensor systems
SHM
Wireless communication
Wireless sensor networks
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Summary:Ensuring the health of civil engineering structures is crucial for the safety and longevity of the built environment. In this direction, structural health monitoring (SHM) has been increasingly employed, providing insight into the structural behavior, based on sensor data representing structural responses. This paper investigates the plausibility of embedding sensors into concrete structures for SHM, leveraging radio frequency identification (RFID) technology, in an attempt to enable the passive operation of sensors without continuous power supply and to reduce potential sources of interference. In contrast to conventional SHM sensors, the uninterrupted operation of embedded sensors must be ensured because post-installation interventions are either impractical or impossible. RFID technology enables wireless data acquisition and energy transmission without mechanical impact on civil engineering structures, although it may be challenging when RFID sensors are embedded in concrete. This study presents a durable passive embedded RFID sensor system (i.e., a system without batteries), including the selection of components, such as housing and cable materials, suitable for withstanding the aggressive environment of concrete without damaging the sensitive electronics or contaminating the data recorded by the sensors. The proposed sensor system is validated in laboratory tests, the results of which provide insights into the influence of each component and are intended to advance the implementation of embedded sensor systems.
ISSN:2168-9229
DOI:10.1109/SENSORS60989.2024.10785220